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index fba11c9..9336669 100644
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index 199bebb..183e96d 100644
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index 4aa940f..48b1f29 100644
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index 254a0bb..a4f9586 100644
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index a4551ad..6a726a9 100644
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index 5578156..9b620c1 100644
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index 96c73c0..08835da 100644
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index 6560532..200fb57 100644
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index 56a8532..9e9599a 100644
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index 43c09bb..366a54d 100644
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diff --git a/assets/cards/faces/4C.png b/assets/cards/faces/4C.png
index a0f8769..b076024 100644
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index b770537..3b2aed8 100644
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index e90268b..9b548ab 100644
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index 07be4e0..4e77998 100644
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diff --git a/assets/cards/faces/5C.png b/assets/cards/faces/5C.png
index 8c5f7e9..1b0f540 100644
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index 5e31fb3..79d3dc7 100644
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index 26f0e5f..0ede17c 100644
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index 84331c0..d6560ed 100644
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index 757cc5e..30e8587 100644
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index 3a3405f..3caa10f 100644
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index 0d88f51..3f45554 100644
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index c9262bb..480713d 100644
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index 081b721..aa69e72 100644
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index 0af5b34..ff8a4f3 100644
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index 4830071..47525a1 100644
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index 23ef996..d17d5f0 100644
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index 072cbe4..5a5a19c 100644
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index 5b52714..b2a5db4 100644
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index 3e81dff..18a777e 100644
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index b88869c..20fdb71 100644
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index ef0a45a..7209fd5 100644
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index d5146ba..c84df43 100644
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diff --git a/assets/cards/faces/AC.png b/assets/cards/faces/AC.png
index 9ded55d..e9333cf 100644
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diff --git a/assets/cards/faces/AD.png b/assets/cards/faces/AD.png
index 8058115..ed00d8b 100644
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diff --git a/assets/cards/faces/AH.png b/assets/cards/faces/AH.png
index 2f69612..c111bdf 100644
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diff --git a/assets/cards/faces/AS.png b/assets/cards/faces/AS.png
index 7a1f8cd..5ca0811 100644
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diff --git a/assets/cards/faces/JC.png b/assets/cards/faces/JC.png
index 9919f75..7833d9f 100644
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diff --git a/assets/cards/faces/JD.png b/assets/cards/faces/JD.png
index 07c5d62..045693d 100644
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diff --git a/assets/cards/faces/JH.png b/assets/cards/faces/JH.png
index badcda8..47bbd6f 100644
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diff --git a/assets/cards/faces/JS.png b/assets/cards/faces/JS.png
index e9d56b4..f9770c7 100644
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diff --git a/assets/cards/faces/KC.png b/assets/cards/faces/KC.png
index 3b2bb7c..906ee19 100644
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diff --git a/assets/cards/faces/KD.png b/assets/cards/faces/KD.png
index 3a63eb7..ba5de5e 100644
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diff --git a/assets/cards/faces/KH.png b/assets/cards/faces/KH.png
index ecd0611..152eba2 100644
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diff --git a/assets/cards/faces/KS.png b/assets/cards/faces/KS.png
index 4a732f0..eff8a25 100644
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diff --git a/assets/cards/faces/QC.png b/assets/cards/faces/QC.png
index 7ee3c12..735ae2b 100644
Binary files a/assets/cards/faces/QC.png and b/assets/cards/faces/QC.png differ
diff --git a/assets/cards/faces/QD.png b/assets/cards/faces/QD.png
index b04fc47..0f39045 100644
Binary files a/assets/cards/faces/QD.png and b/assets/cards/faces/QD.png differ
diff --git a/assets/cards/faces/QH.png b/assets/cards/faces/QH.png
index 3f9cf2e..cbb226c 100644
Binary files a/assets/cards/faces/QH.png and b/assets/cards/faces/QH.png differ
diff --git a/assets/cards/faces/QS.png b/assets/cards/faces/QS.png
index e20b7be..5ef2537 100644
Binary files a/assets/cards/faces/QS.png and b/assets/cards/faces/QS.png differ
diff --git a/docs/ui-mockups/design-system.md b/docs/ui-mockups/design-system.md
index f4b80ec..8f20fa2 100644
--- a/docs/ui-mockups/design-system.md
+++ b/docs/ui-mockups/design-system.md
@@ -222,7 +222,7 @@ Selection highlights use a **2px inset stroke** in `#a54242` following the host
 
 Flat face design.
 - Background: `#1a1a1a`
-- Border: 1px solid in suit color (pink for hearts/diamonds, foreground gray for spades/clubs)
+- Border: none. The card shape is defined by the body fill alone against the play surface. The earlier 1px suit-coloured border was removed because it produced visible anti-aliasing artifacts at the rounded corners (a "gray sliver" where the colored stroke faded through gray pixels into the dark play surface). The 5-unit brightness gap between `#1a1a1a` body and `#151515` surface is enough to read as a card edge without an explicit stroke.
 - Top-left: rank in JetBrains Mono Bold 18px + small suit glyph (10px)
 - Bottom-right: large suit glyph (32px), upright (same orientation as the top-left small glyph — single-orientation digital play does not benefit from the traditional 180° inverted-corner indicator)
 - Corner radius: 8px
diff --git a/solitaire_engine/assets/themes/default/clubs_10.svg b/solitaire_engine/assets/themes/default/clubs_10.svg
index de9fd16..7b946c7 100644
--- a/solitaire_engine/assets/themes/default/clubs_10.svg
+++ b/solitaire_engine/assets/themes/default/clubs_10.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_2.svg b/solitaire_engine/assets/themes/default/clubs_2.svg
index 43bfe1b..02f24ab 100644
--- a/solitaire_engine/assets/themes/default/clubs_2.svg
+++ b/solitaire_engine/assets/themes/default/clubs_2.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_3.svg b/solitaire_engine/assets/themes/default/clubs_3.svg
index aa8e6ae..e0aac65 100644
--- a/solitaire_engine/assets/themes/default/clubs_3.svg
+++ b/solitaire_engine/assets/themes/default/clubs_3.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_4.svg b/solitaire_engine/assets/themes/default/clubs_4.svg
index 423d626..a182d44 100644
--- a/solitaire_engine/assets/themes/default/clubs_4.svg
+++ b/solitaire_engine/assets/themes/default/clubs_4.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_5.svg b/solitaire_engine/assets/themes/default/clubs_5.svg
index e462b51..e75b816 100644
--- a/solitaire_engine/assets/themes/default/clubs_5.svg
+++ b/solitaire_engine/assets/themes/default/clubs_5.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_6.svg b/solitaire_engine/assets/themes/default/clubs_6.svg
index 5172109..0db4045 100644
--- a/solitaire_engine/assets/themes/default/clubs_6.svg
+++ b/solitaire_engine/assets/themes/default/clubs_6.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_7.svg b/solitaire_engine/assets/themes/default/clubs_7.svg
index ff556d0..447790d 100644
--- a/solitaire_engine/assets/themes/default/clubs_7.svg
+++ b/solitaire_engine/assets/themes/default/clubs_7.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_8.svg b/solitaire_engine/assets/themes/default/clubs_8.svg
index 1c7edde..a4b1525 100644
--- a/solitaire_engine/assets/themes/default/clubs_8.svg
+++ b/solitaire_engine/assets/themes/default/clubs_8.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_9.svg b/solitaire_engine/assets/themes/default/clubs_9.svg
index 3db19d0..05f3380 100644
--- a/solitaire_engine/assets/themes/default/clubs_9.svg
+++ b/solitaire_engine/assets/themes/default/clubs_9.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_ace.svg b/solitaire_engine/assets/themes/default/clubs_ace.svg
index 09ad7c7..7c169c4 100644
--- a/solitaire_engine/assets/themes/default/clubs_ace.svg
+++ b/solitaire_engine/assets/themes/default/clubs_ace.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_jack.svg b/solitaire_engine/assets/themes/default/clubs_jack.svg
index cca4db5..ef078e9 100644
--- a/solitaire_engine/assets/themes/default/clubs_jack.svg
+++ b/solitaire_engine/assets/themes/default/clubs_jack.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_king.svg b/solitaire_engine/assets/themes/default/clubs_king.svg
index dbeb418..eb8cdbd 100644
--- a/solitaire_engine/assets/themes/default/clubs_king.svg
+++ b/solitaire_engine/assets/themes/default/clubs_king.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/clubs_queen.svg b/solitaire_engine/assets/themes/default/clubs_queen.svg
index 2a288c9..1c248a9 100644
--- a/solitaire_engine/assets/themes/default/clubs_queen.svg
+++ b/solitaire_engine/assets/themes/default/clubs_queen.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_10.svg b/solitaire_engine/assets/themes/default/diamonds_10.svg
index 3541721..22aad1f 100644
--- a/solitaire_engine/assets/themes/default/diamonds_10.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_10.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_2.svg b/solitaire_engine/assets/themes/default/diamonds_2.svg
index 66b6a72..8f0ed7a 100644
--- a/solitaire_engine/assets/themes/default/diamonds_2.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_2.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_3.svg b/solitaire_engine/assets/themes/default/diamonds_3.svg
index 0a6bc4c..0a3e270 100644
--- a/solitaire_engine/assets/themes/default/diamonds_3.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_3.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_4.svg b/solitaire_engine/assets/themes/default/diamonds_4.svg
index 4fdb3d2..ca31401 100644
--- a/solitaire_engine/assets/themes/default/diamonds_4.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_4.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_5.svg b/solitaire_engine/assets/themes/default/diamonds_5.svg
index 2236e04..4c23234 100644
--- a/solitaire_engine/assets/themes/default/diamonds_5.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_5.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_6.svg b/solitaire_engine/assets/themes/default/diamonds_6.svg
index 0f52ef4..e591189 100644
--- a/solitaire_engine/assets/themes/default/diamonds_6.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_6.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_7.svg b/solitaire_engine/assets/themes/default/diamonds_7.svg
index 94d9069..503d829 100644
--- a/solitaire_engine/assets/themes/default/diamonds_7.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_7.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_8.svg b/solitaire_engine/assets/themes/default/diamonds_8.svg
index da135f8..03cfcdd 100644
--- a/solitaire_engine/assets/themes/default/diamonds_8.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_8.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_9.svg b/solitaire_engine/assets/themes/default/diamonds_9.svg
index c0aff22..684d84d 100644
--- a/solitaire_engine/assets/themes/default/diamonds_9.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_9.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_ace.svg b/solitaire_engine/assets/themes/default/diamonds_ace.svg
index af1f32c..260f62d 100644
--- a/solitaire_engine/assets/themes/default/diamonds_ace.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_ace.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_jack.svg b/solitaire_engine/assets/themes/default/diamonds_jack.svg
index f4f3c4b..19c8f6b 100644
--- a/solitaire_engine/assets/themes/default/diamonds_jack.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_jack.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_king.svg b/solitaire_engine/assets/themes/default/diamonds_king.svg
index b13128e..8d3cc58 100644
--- a/solitaire_engine/assets/themes/default/diamonds_king.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_king.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/diamonds_queen.svg b/solitaire_engine/assets/themes/default/diamonds_queen.svg
index 8e467bc..c790019 100644
--- a/solitaire_engine/assets/themes/default/diamonds_queen.svg
+++ b/solitaire_engine/assets/themes/default/diamonds_queen.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_10.svg b/solitaire_engine/assets/themes/default/hearts_10.svg
index e31e090..554f3f3 100644
--- a/solitaire_engine/assets/themes/default/hearts_10.svg
+++ b/solitaire_engine/assets/themes/default/hearts_10.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_2.svg b/solitaire_engine/assets/themes/default/hearts_2.svg
index 3eca6b5..0e473f6 100644
--- a/solitaire_engine/assets/themes/default/hearts_2.svg
+++ b/solitaire_engine/assets/themes/default/hearts_2.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_3.svg b/solitaire_engine/assets/themes/default/hearts_3.svg
index 271488f..5ff0fbd 100644
--- a/solitaire_engine/assets/themes/default/hearts_3.svg
+++ b/solitaire_engine/assets/themes/default/hearts_3.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_4.svg b/solitaire_engine/assets/themes/default/hearts_4.svg
index eaa97b0..345724b 100644
--- a/solitaire_engine/assets/themes/default/hearts_4.svg
+++ b/solitaire_engine/assets/themes/default/hearts_4.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_5.svg b/solitaire_engine/assets/themes/default/hearts_5.svg
index 6119a14..cf64ed2 100644
--- a/solitaire_engine/assets/themes/default/hearts_5.svg
+++ b/solitaire_engine/assets/themes/default/hearts_5.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_6.svg b/solitaire_engine/assets/themes/default/hearts_6.svg
index 2ded556..e11331f 100644
--- a/solitaire_engine/assets/themes/default/hearts_6.svg
+++ b/solitaire_engine/assets/themes/default/hearts_6.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_7.svg b/solitaire_engine/assets/themes/default/hearts_7.svg
index 51100af..9bc60fe 100644
--- a/solitaire_engine/assets/themes/default/hearts_7.svg
+++ b/solitaire_engine/assets/themes/default/hearts_7.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_8.svg b/solitaire_engine/assets/themes/default/hearts_8.svg
index b7b9cca..659fc8c 100644
--- a/solitaire_engine/assets/themes/default/hearts_8.svg
+++ b/solitaire_engine/assets/themes/default/hearts_8.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_9.svg b/solitaire_engine/assets/themes/default/hearts_9.svg
index d7e0cac..dbd2374 100644
--- a/solitaire_engine/assets/themes/default/hearts_9.svg
+++ b/solitaire_engine/assets/themes/default/hearts_9.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_ace.svg b/solitaire_engine/assets/themes/default/hearts_ace.svg
index 6006e9b..6c024bf 100644
--- a/solitaire_engine/assets/themes/default/hearts_ace.svg
+++ b/solitaire_engine/assets/themes/default/hearts_ace.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_jack.svg b/solitaire_engine/assets/themes/default/hearts_jack.svg
index f5fd15d..53dbbbb 100644
--- a/solitaire_engine/assets/themes/default/hearts_jack.svg
+++ b/solitaire_engine/assets/themes/default/hearts_jack.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_king.svg b/solitaire_engine/assets/themes/default/hearts_king.svg
index 3b110a0..3cfc37f 100644
--- a/solitaire_engine/assets/themes/default/hearts_king.svg
+++ b/solitaire_engine/assets/themes/default/hearts_king.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/hearts_queen.svg b/solitaire_engine/assets/themes/default/hearts_queen.svg
index b17ce05..04d29b6 100644
--- a/solitaire_engine/assets/themes/default/hearts_queen.svg
+++ b/solitaire_engine/assets/themes/default/hearts_queen.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e35353" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_10.svg b/solitaire_engine/assets/themes/default/spades_10.svg
index e0ab4fc..229a4e5 100644
--- a/solitaire_engine/assets/themes/default/spades_10.svg
+++ b/solitaire_engine/assets/themes/default/spades_10.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_2.svg b/solitaire_engine/assets/themes/default/spades_2.svg
index bacdb90..95c2859 100644
--- a/solitaire_engine/assets/themes/default/spades_2.svg
+++ b/solitaire_engine/assets/themes/default/spades_2.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_3.svg b/solitaire_engine/assets/themes/default/spades_3.svg
index 33b270b..98965c7 100644
--- a/solitaire_engine/assets/themes/default/spades_3.svg
+++ b/solitaire_engine/assets/themes/default/spades_3.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_4.svg b/solitaire_engine/assets/themes/default/spades_4.svg
index 8ff891b..a108cf0 100644
--- a/solitaire_engine/assets/themes/default/spades_4.svg
+++ b/solitaire_engine/assets/themes/default/spades_4.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_5.svg b/solitaire_engine/assets/themes/default/spades_5.svg
index 09034f9..1fb0596 100644
--- a/solitaire_engine/assets/themes/default/spades_5.svg
+++ b/solitaire_engine/assets/themes/default/spades_5.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_6.svg b/solitaire_engine/assets/themes/default/spades_6.svg
index 7071cf1..92fb3ef 100644
--- a/solitaire_engine/assets/themes/default/spades_6.svg
+++ b/solitaire_engine/assets/themes/default/spades_6.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_7.svg b/solitaire_engine/assets/themes/default/spades_7.svg
index c5290c1..84d1b10 100644
--- a/solitaire_engine/assets/themes/default/spades_7.svg
+++ b/solitaire_engine/assets/themes/default/spades_7.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_8.svg b/solitaire_engine/assets/themes/default/spades_8.svg
index 161338e..335bb0e 100644
--- a/solitaire_engine/assets/themes/default/spades_8.svg
+++ b/solitaire_engine/assets/themes/default/spades_8.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_9.svg b/solitaire_engine/assets/themes/default/spades_9.svg
index 870eb25..ba51949 100644
--- a/solitaire_engine/assets/themes/default/spades_9.svg
+++ b/solitaire_engine/assets/themes/default/spades_9.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_ace.svg b/solitaire_engine/assets/themes/default/spades_ace.svg
index f9a8398..a82dde8 100644
--- a/solitaire_engine/assets/themes/default/spades_ace.svg
+++ b/solitaire_engine/assets/themes/default/spades_ace.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_jack.svg b/solitaire_engine/assets/themes/default/spades_jack.svg
index fd7af05..4ef7099 100644
--- a/solitaire_engine/assets/themes/default/spades_jack.svg
+++ b/solitaire_engine/assets/themes/default/spades_jack.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_king.svg b/solitaire_engine/assets/themes/default/spades_king.svg
index 60428d3..a4bb53c 100644
--- a/solitaire_engine/assets/themes/default/spades_king.svg
+++ b/solitaire_engine/assets/themes/default/spades_king.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/assets/themes/default/spades_queen.svg b/solitaire_engine/assets/themes/default/spades_queen.svg
index d5ae4ae..d5be844 100644
--- a/solitaire_engine/assets/themes/default/spades_queen.svg
+++ b/solitaire_engine/assets/themes/default/spades_queen.svg
@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="#1a1a1a" stroke="#e8e8e8" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="#1a1a1a"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/src/assets/card_face_svg.rs b/solitaire_engine/src/assets/card_face_svg.rs
index 58deb4f..c45a955 100644
--- a/solitaire_engine/src/assets/card_face_svg.rs
+++ b/solitaire_engine/src/assets/card_face_svg.rs
@@ -213,15 +213,21 @@ pub fn face_svg(rank: Rank, suit: Suit) -> String {
     let large_glyph_attrs = glyph_paint_attrs(colour, paint);
 
     // Numbers come from `design-system.md` § Game Cards, scaled 2×:
-    //   border:        1 px  → 2 px  stroke-width
     //   corner radius: 8 px  → 16 px rx/ry
     //   rank font:    18 px  → 36 px
     //   small glyph:  10 px  → 20 px (suit_path_d is authored at 32 →
     //                                 scale 0.625 to land at 20)
     //   large glyph:  32 px  → 64 px (scale 2.0)
     //
-    // Inset the border by 1 px so the 2 px stroke renders fully
-    // inside the 256 × 384 pixmap rather than getting clipped.
+    // No stroke on the card body. The earlier 1 px suit-coloured
+    // border created anti-aliasing artifacts at the rounded corners
+    // where the colored stroke faded through gray pixels into the
+    // dark play surface beneath — a visible "gray sliver" at each
+    // rounded corner that read as a rendering bug. Without the
+    // stroke, the card shape is defined purely by the body fill
+    // against the play surface; the 5-unit brightness gap between
+    // `#1a1a1a` (card body) and `#151515` (play surface) is small
+    // enough that anti-aliasing is barely perceptible.
     //
     // Suit glyphs are rendered as inline SVG paths (not `<text>`)
     // because the bundled `FiraMono` font doesn't carry usable
@@ -236,8 +242,8 @@ pub fn face_svg(rank: Rank, suit: Suit) -> String {
     // `design-system.md` § Game Cards for the spec deviation.
     format!(
         r##"<svg xmlns="http://www.w3.org/2000/svg" width="256" height="384" viewBox="0 0 256 384">
-  <rect x="1" y="1" width="254" height="382" rx="16" ry="16"
-        fill="{BG_FACE}" stroke="{colour}" stroke-width="2"/>
+  <rect x="0" y="0" width="256" height="384" rx="16" ry="16"
+        fill="{BG_FACE}"/>
 
   <!-- Top-left rank in JetBrains-Mono-styled FiraMono (rank digits
        and letters render correctly in FiraMono; only the suit glyphs
diff --git a/solitaire_engine/tests/card_face_svg_pin.rs b/solitaire_engine/tests/card_face_svg_pin.rs
index 6002935..b499c9a 100644
--- a/solitaire_engine/tests/card_face_svg_pin.rs
+++ b/solitaire_engine/tests/card_face_svg_pin.rs
@@ -24,58 +24,58 @@ use solitaire_engine::assets::card_face_svg::{
 use solitaire_engine::assets::rasterize_svg;
 
 const EXPECTED: &[(&str, u64)] = &[
-    ("face_AC", 0xecfed9881dab58cc),
-    ("face_2C", 0x9d226854e375a071),
-    ("face_3C", 0x57635bd3396b1c6f),
-    ("face_4C", 0x3db4ebca46202411),
-    ("face_5C", 0x6aaaa97f8d64d141),
-    ("face_6C", 0x45ab0e3692f5086f),
-    ("face_7C", 0xb6c6d47a9c41c042),
-    ("face_8C", 0x95e467bebfe1f43f),
-    ("face_9C", 0x78c67114e728f726),
-    ("face_10C", 0x59ea22af2a519731),
-    ("face_JC", 0x0757d9cae053863e),
-    ("face_QC", 0xc3de9e10c2e8819e),
-    ("face_KC", 0xefd2e9dd4c6f734f),
-    ("face_AD", 0x95e2954416f7051d),
-    ("face_2D", 0xfa494e129a7d130b),
-    ("face_3D", 0x493f32ac1b4f1365),
-    ("face_4D", 0x1303407818e3896d),
-    ("face_5D", 0x3c68bc01d5661c9b),
-    ("face_6D", 0x4ae0872812942c95),
-    ("face_7D", 0xf4a040f288b53a3d),
-    ("face_8D", 0xb5964ffbcc1834c0),
-    ("face_9D", 0xfc2b244f9e6c987c),
-    ("face_10D", 0xc9648dfd2f74e387),
-    ("face_JD", 0x055c9e4b1f56b2b4),
-    ("face_QD", 0x05d0d7e3be132b36),
-    ("face_KD", 0x540753328025961e),
-    ("face_AH", 0x8ac76ac84674dae6),
-    ("face_2H", 0xf20c188bc5cf1008),
-    ("face_3H", 0xc604901c0da15c0e),
-    ("face_4H", 0x371c115d9292fa56),
-    ("face_5H", 0x5cabef7840c6e378),
-    ("face_6H", 0x48948872acab515e),
-    ("face_7H", 0x49e96e37591f8c86),
-    ("face_8H", 0xe30b740fd0f3575b),
-    ("face_9H", 0x4067a838eeff2ea7),
-    ("face_10H", 0xd9e9913fa5d9b974),
-    ("face_JH", 0xe4344bff58d04e7f),
-    ("face_QH", 0xf33df3f193827f25),
-    ("face_KH", 0x8ada887b665fa3fd),
-    ("face_AS", 0x586d5587ad518f46),
-    ("face_2S", 0xbc0deb204e690d57),
-    ("face_3S", 0xac04b5df8741d889),
-    ("face_4S", 0x6a2ebcdb517b7ab7),
-    ("face_5S", 0x9868f72763bbdae7),
-    ("face_6S", 0x9a4c6842e0cbc489),
-    ("face_7S", 0x15d17732dadf2ec0),
-    ("face_8S", 0xb581df40dace0e59),
-    ("face_9S", 0xce92a55ddcc6b4fc),
-    ("face_10S", 0x1d92560a36938e97),
-    ("face_JS", 0xd339b7a54139f9d4),
-    ("face_QS", 0x59eae032af251c74),
-    ("face_KS", 0x901e0d1ace6ff6a9),
+    ("face_AC", 0x615e0ae429f479d5),
+    ("face_2C", 0xb882a01af5338788),
+    ("face_3C", 0x2ca39e5044b20caa),
+    ("face_4C", 0xf1439571d0877e48),
+    ("face_5C", 0x30254c808947a0e8),
+    ("face_6C", 0xb23c1bec933a3a2a),
+    ("face_7C", 0x250d5dca1cd7f72f),
+    ("face_8C", 0xe663eb85d871e71a),
+    ("face_9C", 0xd60724ce062f1c3b),
+    ("face_10C", 0x271554347971c038),
+    ("face_JC", 0xe9e6d9105d4fdd73),
+    ("face_QC", 0x3e9c1094ce524373),
+    ("face_KC", 0x8bdd75d0c9b2f23a),
+    ("face_AD", 0x452313abfc8ae82b),
+    ("face_2D", 0x5e7bfe77ab0b28a5),
+    ("face_3D", 0x327a1e905aea8beb),
+    ("face_4D", 0x86a4d1f243c60687),
+    ("face_5D", 0x0e806a2b7350efc5),
+    ("face_6D", 0x18150445cdba5fcb),
+    ("face_7D", 0x25891a7b57050f7f),
+    ("face_8D", 0x17096711946662be),
+    ("face_9D", 0x1015f68680fc63b6),
+    ("face_10D", 0x828bb4a68d291b3d),
+    ("face_JD", 0x07b88b412f1357de),
+    ("face_QD", 0x79d83db7e08d6338),
+    ("face_KD", 0x72e59e0b36af3ac0),
+    ("face_AH", 0xe8591acb1b311f68),
+    ("face_2H", 0x0ecbabd6851a6e06),
+    ("face_3H", 0x26f618607d72fb28),
+    ("face_4H", 0xd678c1b9fe409d54),
+    ("face_5H", 0xc6d600ca7b935aa6),
+    ("face_6H", 0xcccc4f21cdf2c708),
+    ("face_7H", 0x5c73195762121eec),
+    ("face_8H", 0xc8e5adc5a1878635),
+    ("face_9H", 0xfc1a1962879e3fed),
+    ("face_10H", 0x0e2bcd01a63bb11e),
+    ("face_JH", 0x9b18ac201230d355),
+    ("face_QH", 0xc98e562402c11083),
+    ("face_KH", 0x36a1eca09821b25b),
+    ("face_AS", 0x0a62cb01f3c6a27b),
+    ("face_2S", 0xa42a55c0df68c582),
+    ("face_3S", 0xf789fa97b5e9fff0),
+    ("face_4S", 0x7ffe2bc702a019c2),
+    ("face_5S", 0xe38731d462109022),
+    ("face_6S", 0xf7e7570631786c70),
+    ("face_7S", 0x4b70162e6a977a91),
+    ("face_8S", 0xe45989c24d21fda0),
+    ("face_9S", 0x5ae9856cd14f6e65),
+    ("face_10S", 0x77ff64bff391d7f2),
+    ("face_JS", 0xb27564785cb9d07d),
+    ("face_QS", 0x072a9bfccdbc367d),
+    ("face_KS", 0xbd1464c949ffa380),
     ("back_0", 0xfd1742ebe330481a),
     ("back_1", 0x446fdc0a3c83a03a),
     ("back_2", 0xcf188fdec9f5819a),