fix(ui): remove grey HUD band background and constrain stock badge to pile bounds

Bug 1: StockCountBadge was centred 12 px inward from the stock pile's right
edge but its half-width of 17 px pushed the right edge 5 px past the pile
boundary. On Android (H_GAP_DIVISOR=32, inter-pile gap ~4 px) the badge
corner covered the waste pile's left edge at Z=30, making the waste card
appear clipped. STOCK_BADGE_INSET.x: -12 → -20 keeps the right edge 3 px
inside the stock pile on every device.

Bug 2: The top HUD band Node had an opaque dark-grey BackgroundColor sized to
HUD_BAND_HEIGHT (64/80 px). With only Tier-1 content (~30 px) visible in
typical gameplay the grey block appeared far taller than its content. Removed
BackgroundColor from the band entity; layout reservation in compute_layout is
unchanged and the bottom action bar retains its own background.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,38 @@ project follows [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [0.32.0] — 2026-05-16
+
+### Fixed
+
+- **Stock-count badge overlaps waste pile on Android** (Bug 1). The badge was
+  centred 12 px inward from the stock pile's right edge, but its half-width of
+  17 px pushed it 5 px past the edge. On Android (`H_GAP_DIVISOR = 32`) the
+  inter-pile gap is only ~4 px, so the badge's top-right corner covered the
+  left edge of the adjacent waste card at `Z_STOCK_BADGE = 30` (above the
+  card's Z ≈ 1). Fixed by moving the inset to 20 px so the badge right edge
+  sits 3 px inside the stock card on every device.
+- **Oversized grey header bar** (Bug 2). The top HUD band was a full-width
+  `Node` with an opaque dark-grey `BackgroundColor` sized to `HUD_BAND_HEIGHT`
+  (64 px desktop / 80 px Android). Typical gameplay only shows one tier of
+  score text (~30 px), leaving a large empty grey block. Removed the
+  `BackgroundColor` from the band entity; the green felt now shows through and
+  only the score text and avatar button are visible in the header area.
+
+## [0.31.0] — 2026-05-16
+
+### Fixed
+
+- **Face-down cards rendered as solid red squares on AMOLED phones** (Bug 1).
+  The dark theme's card back (`back.svg`) uses a near-black background
+  (`#151515`) which AMOLED screens render as fully-off pixels, leaving only a
+  tiny `#a54242` red badge visible — exactly what was reported. Fixed by
+  changing the fresh-install default theme from "dark" to "classic" (white
+  background with navy diamond pattern, clearly readable on all display types).
+  Also corrected stale asset paths in `load_card_images` (`cards/backs/back_N`
+  → `cards/backs/classic/back_N`, `cards/faces/XY` → `cards/faces/classic/XY`)
+  so the PNG fallback loads correctly when the embedded theme hasn't arrived yet.
+
 ## [0.30.0] — 2026-05-16
 
 ### Changed

solitaire_data/src/settings.rs

@@ -275,7 +275,7 @@ fn default_music_volume() -> f32 {
 }
 
 fn default_theme_id() -> String {
-    "dark".to_string()
+    "classic".to_string()
 }
 
 /// Default tooltip-hover dwell delay in seconds. Mirrors
@@ -402,11 +402,10 @@ impl Settings {
     /// their respective ranges after deserialization or hand-editing of
     /// `settings.json`.
     pub fn sanitized(self) -> Self {
-        // Migrate stale theme IDs: "default" was removed when the theme was
-        // renamed to "dark"; "classic" was briefly the default before "dark"
-        // was restored as the shipped default.
+        // Migrate stale theme IDs: "default" was the original name before it
+        // was renamed to "dark".
         let selected_theme_id = match self.selected_theme_id.as_str() {
-            "default" | "classic" => "dark".to_string(),
+            "default" => "dark".to_string(),
             _ => self.selected_theme_id,
         };
         Self {

solitaire_engine/src/card_plugin.rs

@@ -484,13 +484,13 @@ fn load_card_images(asset_server: Option<Res<AssetServer>>, mut commands: Comman
     let faces: [[Handle<Image>; 13]; 4] = std::array::from_fn(|suit| {
         std::array::from_fn(|rank| {
             asset_server.load(format!(
-                "cards/faces/{}{}.png",
+                "cards/faces/classic/{}{}.png",
                 RANK_STRS[rank], SUIT_CHARS[suit]
             ))
         })
     });
     let backs = std::array::from_fn(|i| {
-        asset_server.load(format!("cards/backs/back_{i}.png"))
+        asset_server.load(format!("cards/backs/classic/back_{i}.png"))
     });
     commands.insert_resource(CardImageSet {
         faces,
@@ -1614,10 +1614,11 @@ fn update_stock_empty_indicator(
 // ---------------------------------------------------------------------------
 
 /// Inset (in pixels) from the top-right corner of the stock pile sprite to
-/// the centre of the count badge. A small inward offset keeps the chip from
-/// drifting half-off the card while still reading as "attached" to the
-/// corner.
-const STOCK_BADGE_INSET: Vec2 = Vec2::new(-12.0, -8.0);
+/// the centre of the count badge. Must satisfy `|x| >= STOCK_BADGE_SIZE.x / 2`
+/// so the badge right edge stays inside the stock pile and never overlaps the
+/// adjacent waste pile — critical on Android where `H_GAP_DIVISOR = 32` gives
+/// an inter-pile gap of only ~4 px.
+const STOCK_BADGE_INSET: Vec2 = Vec2::new(-20.0, -8.0);
 
 /// Width / height of the badge background sprite, in world pixels. Sized so
 /// a 2-digit count (max "24") fits comfortably with `TYPE_BODY` (14 pt) text.

solitaire_engine/src/hud_plugin.rs

@@ -479,16 +479,13 @@ impl Plugin for HudPlugin {
     }
 }
 
-/// Spawns the translucent HUD band that anchors the action buttons
-/// and primary readouts visually. Sits behind every other HUD element
-/// (one z-rung below `Z_HUD`) so it reads as the band's "container"
-/// without intercepting clicks from the buttons it sits under.
+/// Spawns the invisible HUD band that reserves vertical space at the top of
+/// the screen so the card layout (computed by `layout::compute_layout` using
+/// `HUD_BAND_HEIGHT`) aligns correctly below the score readouts.
 ///
-/// Width is full-window, height matches `layout::HUD_BAND_HEIGHT` (the
-/// same constant the card layout reserves at the top), so the band's
-/// bottom edge lines up exactly with the top edge of the highest
-/// playable card. The fill is `BG_HUD_BAND` — midnight purple at 0.70
-/// alpha, so the green felt reads through subtly.
+/// The entity carries no `BackgroundColor` — the green felt shows through.
+/// A slim grey background is handled by each content section individually
+/// (the bottom action bar has its own `BG_HUD_BAND` background).
 fn spawn_hud_band(insets: Option<Res<SafeAreaInsets>>, mut commands: Commands) {
     const BASE_TOP: f32 = 0.0;
     let top_inset = insets.as_deref().copied().unwrap_or_default().top;
@@ -501,10 +498,6 @@ fn spawn_hud_band(insets: Option<Res<SafeAreaInsets>>, mut commands: Commands) {
             height: Val::Px(HUD_BAND_HEIGHT),
             ..default()
         },
-        BackgroundColor(BG_HUD_BAND),
-        // Sit one z-rung below the HUD content so the buttons and text
-        // paint on top, but above the card sprites (which are 2D-world
-        // entities and rendered behind UI regardless).
         ZIndex(Z_HUD - 1),
         SafeAreaAnchoredTop { base_top: BASE_TOP },
         HudBand,

solitaire_engine/src/input_plugin.rs

@@ -1785,9 +1785,8 @@ mod tests {
         let layout = compute_layout(Vec2::new(1280.0, 800.0), 0.0, 0.0, true);
         // Tableau 6 has 7 cards.
         let (_, size) = pile_drop_rect(&PileType::Tableau(6), &layout, &game);
-        // Expected: card_height + 6 * fan. fan = 0.25 * card_height, so
-        // size.y = card_height * (1 + 6 * 0.25) = card_height * 2.5.
-        let expected = layout.card_size.y * 2.5;
+        // Expected: card_height + 6 fan steps.
+        let expected = layout.card_size.y * (1.0 + 6.0 * layout.tableau_fan_frac);
         assert!(
             (size.y - expected).abs() < 1e-3,
             "expected {expected}, got {}",