feat: generate app icon (bug beetle design)

Python PIL script generates a bug beetle icon with:
- Dark charcoal body with lighter shell highlight
- Green accent stripe across the wing casing
- Head with white eyes, two curved antennae with dot tips
- Six legs (3 per side)
- All 10 required macOS sizes (16..512 at @1x/@2x)

Run: python3 scripts/generate_app_icon.py

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

Bugger.xcodeproj/xcshareddata/xcschemes/Bugger.xcscheme

@@ -22,6 +22,13 @@
          </BuildActionEntry>
       </BuildActionEntries>
    </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
@@ -43,4 +50,18 @@
          </BuildableReference>
       </BuildableProductRunnable>
    </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
 </Scheme>

Resources/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,58 +1,68 @@
 {
-  "images" : [
+  "images": [
     {
-      "idiom" : "mac",
+      "size": "16x16",
-      "scale" : "1x",
+      "idiom": "mac",
-      "size" : "16x16"
+      "filename": "icon_16x16@x1.png",
+      "scale": "1x"
     },
     {
-      "idiom" : "mac",
+      "size": "16x16",
-      "scale" : "2x",
+      "idiom": "mac",
-      "size" : "16x16"
+      "filename": "icon_16x16@x2.png",
+      "scale": "2x"
     },
     {
-      "idiom" : "mac",
+      "size": "32x32",
-      "scale" : "1x",
+      "idiom": "mac",
-      "size" : "32x32"
+      "filename": "icon_32x32@x1.png",
+      "scale": "1x"
     },
     {
-      "idiom" : "mac",
+      "size": "32x32",
-      "scale" : "2x",
+      "idiom": "mac",
-      "size" : "32x32"
+      "filename": "icon_32x32@x2.png",
+      "scale": "2x"
     },
     {
-      "idiom" : "mac",
+      "size": "128x128",
-      "scale" : "1x",
+      "idiom": "mac",
-      "size" : "128x128"
+      "filename": "icon_128x128@x1.png",
+      "scale": "1x"
     },
     {
-      "idiom" : "mac",
+      "size": "128x128",
-      "scale" : "2x",
+      "idiom": "mac",
-      "size" : "128x128"
+      "filename": "icon_128x128@x2.png",
+      "scale": "2x"
     },
     {
-      "idiom" : "mac",
+      "size": "256x256",
-      "scale" : "1x",
+      "idiom": "mac",
-      "size" : "256x256"
+      "filename": "icon_256x256@x1.png",
+      "scale": "1x"
     },
     {
-      "idiom" : "mac",
+      "size": "256x256",
-      "scale" : "2x",
+      "idiom": "mac",
-      "size" : "256x256"
+      "filename": "icon_256x256@x2.png",
+      "scale": "2x"
     },
     {
-      "idiom" : "mac",
+      "size": "512x512",
-      "scale" : "1x",
+      "idiom": "mac",
-      "size" : "512x512"
+      "filename": "icon_512x512@x1.png",
+      "scale": "1x"
     },
     {
-      "idiom" : "mac",
+      "size": "512x512",
-      "scale" : "2x",
+      "idiom": "mac",
-      "size" : "512x512"
+      "filename": "icon_512x512@x2.png",
+      "scale": "2x"
     }
   ],
-  "info" : {
+  "info": {
-    "author" : "xcode",
+    "author": "xcode",
-    "version" : 1
+    "version": 1
   }
-}
+}

scripts/generate_app_icon.py

@@ -0,0 +1,173 @@
+#!/usr/bin/env python3
+"""Generate Bugger app icon (bug beetle) in all required sizes for macOS."""
+import math, os, shutil
+from pathlib import Path
+from PIL import Image, ImageDraw
+
+ROOT = Path(__file__).resolve().parent.parent
+ICONSET = ROOT / "Resources" / "Assets.xcassets" / "AppIcon.appiconset"
+
+# Required macOS icon sizes: (logical_size, scale_factor, actual_pixels)
+SIZES = [
+    (16, 1, 16), (16, 2, 32),
+    (32, 1, 32), (32, 2, 64),
+    (128, 1, 128), (128, 2, 256),
+    (256, 1, 256), (256, 2, 512),
+    (512, 1, 512), (512, 2, 1024),
+]
+
+
+def draw_bug(canvas_size: int) -> Image.Image:
+    """Draw a bug beetle icon at given canvas size. Returns RGBA image."""
+    img = Image.new("RGBA", (canvas_size, canvas_size), (0, 0, 0, 0))
+    d = ImageDraw.Draw(img)
+    s = canvas_size  # shorthand
+
+    # Colors
+    body_fill = (45, 50, 55, 255)       # dark charcoal
+    body_highlight = (65, 72, 78, 255)  # lighter shell
+    accent_green = (76, 188, 128, 255)  # green accent
+    antenna = (45, 50, 55, 255)
+    leg = (45, 50, 55, 255)
+    eye = (255, 255, 255, 255)
+
+    # Margins (proportional)
+    margin = s * 0.12
+
+    # ---- Body (rounded oval) ----
+    body_rect = (
+        margin + s * 0.08,   # left
+        margin + s * 0.22,   # top
+        s - margin - s * 0.08,  # right
+        s - margin + s * 0.05,  # bottom
+    )
+    d.rounded_rectangle(body_rect, radius=s * 0.28, fill=body_fill)
+
+    # ---- Shell highlight (lighter arc on top half) ----
+    shell_rect = (
+        margin + s * 0.06,
+        margin + s * 0.22,
+        s - margin - s * 0.06,
+        s * 0.62,
+    )
+    d.pieslice(shell_rect, start=180, end=360, fill=body_highlight)
+
+    # ---- Green accent stripe ----
+    stripe_rect = (
+        s * 0.32,
+        s * 0.38,
+        s * 0.68,
+        s * 0.62,
+    )
+    d.rounded_rectangle(stripe_rect, radius=s * 0.06, fill=accent_green)
+
+    # ---- Head (small semi-circle at top) ----
+    head_center = (s * 0.50, s * 0.30)
+    head_r = s * 0.095
+    d.ellipse(
+        (head_center[0] - head_r, head_center[1] - head_r,
+         head_center[0] + head_r, head_center[1] + head_r),
+        fill=body_fill
+    )
+
+    # ---- Eyes ----
+    eye_r = s * 0.025
+    eye_offset = s * 0.04
+    for ex in (head_center[0] - eye_offset, head_center[0] + eye_offset):
+        d.ellipse(
+            (ex - eye_r, head_center[1] - eye_r - s * 0.01,
+             ex + eye_r, head_center[1] + eye_r - s * 0.01),
+            fill=eye
+        )
+
+    # ---- Antennae (two curved lines) ----
+    ant_line_w = max(2, int(s * 0.015))
+    ant_start_y = head_center[1] - head_r + s * 0.01
+    for side, curve_dir in [(-1, -0.08), (1, 0.08)]:
+        ant_start_x = head_center[0] + side * s * 0.04
+        points = [
+            (ant_start_x, ant_start_y),
+            (ant_start_x + side * s * 0.06, ant_start_y - s * 0.08),
+            (ant_start_x + side * s * 0.14, ant_start_y - s * 0.18 + curve_dir * s),
+            (ant_start_x + side * s * 0.18 + curve_dir * s * 0.5, ant_start_y - s * 0.17),
+        ]
+        for i in range(len(points) - 1):
+            d.line([points[i], points[i + 1]], fill=antenna, width=ant_line_w)
+        # dot at tip
+        tip_r = max(1, int(s * 0.012))
+        tip = points[-1]
+        d.ellipse((tip[0] - tip_r, tip[1] - tip_r, tip[0] + tip_r, tip[1] + tip_r),
+                  fill=antenna)
+
+    # ---- Legs (3 per side) ----
+    leg_w = max(2, int(s * 0.018))
+    leg_positions = [0.45, 0.56, 0.67]  # y-positions as fraction of body height
+    body_left = margin + s * 0.02
+    body_right = s - margin - s * 0.02
+
+    for frac in leg_positions:
+        leg_y = s * (0.22 + frac * 0.57)
+        # Left legs
+        d.line(
+            [(body_left, leg_y),
+             (body_left - s * 0.16, leg_y - s * 0.08),
+             (body_left - s * 0.22, leg_y + s * 0.04)],
+            fill=leg, width=leg_w
+        )
+        # Right legs
+        d.line(
+            [(body_right, leg_y),
+             (body_right + s * 0.16, leg_y - s * 0.08),
+             (body_right + s * 0.22, leg_y + s * 0.04)],
+            fill=leg, width=leg_w
+        )
+
+    return img
+
+
+def main():
+    ICONSET.mkdir(parents=True, exist_ok=True)
+
+    # Generate the largest size and downscale
+    master = draw_bug(1024)
+
+    images = []
+    for logical, scale, pixels in SIZES:
+        if pixels == 1024:
+            img = master
+        else:
+            img = master.resize((pixels, pixels), Image.LANCZOS)
+
+        filename = f"icon_{logical}x{logical}@x{scale}.png"
+        filepath = ICONSET / filename
+        img.save(filepath, "PNG")
+        images.append({
+            "size": f"{logical}x{logical}",
+            "scale": f"{scale}x",
+            "filename": filename,
+        })
+        print(f"  {filename} ({pixels}×{pixels})")
+
+    # Update Contents.json
+    contents = {
+        "images": [],
+        "info": {"author": "xcode", "version": 1},
+    }
+    for img in images:
+        contents["images"].append({
+            "size": img["size"],
+            "idiom": "mac",
+            "filename": img["filename"],
+            "scale": img["scale"],
+        })
+
+    import json
+    contents_path = ICONSET / "Contents.json"
+    with open(contents_path, "w") as f:
+        json.dump(contents, f, indent=2)
+    print(f"\nWrote {contents_path}")
+    print(f"Generated {len(images)} icon sizes in {ICONSET}")
+
+
+if __name__ == "__main__":
+    main()