fix(engine): drop card-face border to remove gray-corner artifact

Player feedback after the 2-colour revert: "I do not like the
grey corners on the cards." The visible artifact was anti-
aliasing physics — the 1 px suit-coloured stroke (red for
hearts/diamonds, near-white for clubs/spades) faded through
gray pixels into the dark play surface at each rounded corner,
producing a visible "gray sliver" at the four arcs of every
card.

Fix: drop the stroke entirely. The card body fill defines the
shape against the 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. Anti-aliasing on a
fill-only rounded rect blends `#1a1a1a → #151515` over a few
pixels — barely perceptible compared to the
`stroke → transparent` gradient that produced the artifact.

### Changes

- `card_face_svg.rs`: removed `stroke="{colour}" stroke-width="2"`
  from the card body rect. Reverted the 1 px stroke inset back
  to `(x=0, y=0, width=256, height=384)` since there's no
  longer a stroke to keep inside the pixmap. Module-level
  comment updated to document the reasoning.
- `design-system.md` § Game Cards line 225 updated: "Border:
  1px solid in suit color" → "Border: none." with the
  artifact rationale recorded as audit trail.
- `card_face_svg_pin.rs` rebaselined: all 52 face hashes drift
  (every card's perimeter pixels changed); 5 back hashes
  unchanged.

Workspace clippy + cargo test --workspace clean. 1191 passing.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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