diff --git a/bin/assets/icon/ecode-macos.png b/bin/assets/icon/ecode-macos.png
index b6c00d48b..b75ebf7f7 100644
Binary files a/bin/assets/icon/ecode-macos.png and b/bin/assets/icon/ecode-macos.png differ
diff --git a/bin/assets/icon/ecode.icns b/bin/assets/icon/ecode.icns
index 96b1d6387..ec9443fd5 100644
Binary files a/bin/assets/icon/ecode.icns and b/bin/assets/icon/ecode.icns differ
diff --git a/bin/assets/icon/ee-macos.png b/bin/assets/icon/ee-macos.png
index df9dd9c1f..9707c8fa5 100644
Binary files a/bin/assets/icon/ee-macos.png and b/bin/assets/icon/ee-macos.png differ
diff --git a/bin/assets/icon/ee.icns b/bin/assets/icon/ee.icns
index d90cb6970..4d834a1cb 100644
Binary files a/bin/assets/icon/ee.icns and b/bin/assets/icon/ee.icns differ
diff --git a/bin/assets/icon/eeiv-macos.png b/bin/assets/icon/eeiv-macos.png
index d9caf91e5..324de425c 100644
Binary files a/bin/assets/icon/eeiv-macos.png and b/bin/assets/icon/eeiv-macos.png differ
diff --git a/bin/assets/icon/eeiv.icns b/bin/assets/icon/eeiv.icns
index 8aeeef63a..d362f6034 100644
Binary files a/bin/assets/icon/eeiv.icns and b/bin/assets/icon/eeiv.icns differ
diff --git a/bin/assets/icon/eproc-macos.png b/bin/assets/icon/eproc-macos.png
index 10663e475..f3bd27663 100644
Binary files a/bin/assets/icon/eproc-macos.png and b/bin/assets/icon/eproc-macos.png differ
diff --git a/bin/assets/icon/eproc.icns b/bin/assets/icon/eproc.icns
index c6d5377b6..726209b4d 100644
Binary files a/bin/assets/icon/eproc.icns and b/bin/assets/icon/eproc.icns differ
diff --git a/bin/assets/icon/eterm-macos.png b/bin/assets/icon/eterm-macos.png
index 656f0debc..a16bdfd2f 100644
Binary files a/bin/assets/icon/eterm-macos.png and b/bin/assets/icon/eterm-macos.png differ
diff --git a/bin/assets/icon/eterm.icns b/bin/assets/icon/eterm.icns
index 73e51d71f..8d4077bc4 100644
Binary files a/bin/assets/icon/eterm.icns and b/bin/assets/icon/eterm.icns differ
diff --git a/bin/unit_tests/assets/fontrendering/eepp-ui-richtext.webp b/bin/unit_tests/assets/fontrendering/eepp-ui-richtext.webp
index cd92af5b2..d2a28c8d9 100644
Binary files a/bin/unit_tests/assets/fontrendering/eepp-ui-richtext.webp and b/bin/unit_tests/assets/fontrendering/eepp-ui-richtext.webp differ
diff --git a/projects/scripts/generate_app_icons.py b/projects/scripts/generate_app_icons.py
index beef38b75..5210ea3a9 100755
--- a/projects/scripts/generate_app_icons.py
+++ b/projects/scripts/generate_app_icons.py
@@ -4,9 +4,10 @@
 For every application this derives the 256x256 .png runtime window icon and,
 where platform packaging needs them, the Windows .ico, the MinGW .res/.x64.res
 COFF resource objects, and the macOS .icns container. The shared PNG uses
-Breeze-like small-icon margins; the macOS runtime PNG and ICNS use separate
-transparent insets to fit neighboring Dock icons. Windows ICO entries retain
-their original full-size artwork.
+Breeze-like small-icon margins; the macOS runtime PNG and larger ICNS entries
+use matching transparent insets to fit neighboring Dock icons. Smaller ICNS
+entries keep Breeze-like margins. Windows ICO entries retain their original
+full-size artwork.
 
 The binary layouts intentionally mirror the historical artifacts:
 
@@ -38,23 +39,20 @@ import zlib
 
 PNG_SIZE = 256
 # Breeze's colorful icon grid uses 2px margins at 32px and 4px at 64px.
-# Larger macOS icons get progressively more breathing room. These are visual
+# Larger macOS icons match the runtime PNG's artwork bounds so the Dock icon
+# does not change size when the application starts or exits. These are visual
 # design choices, not mandated dimensions in Apple's icon guidelines.
 SMALL_ARTWORK_FRACTION = 0.875
-MEDIUM_ARTWORK_FRACTION = 0.85
-LARGE_ARTWORK_FRACTION = 0.824
-# SDL's Cocoa backend displays the single runtime PNG larger than .icns icons
-# in the Dock. This ratio brings its visible bounds in line with neighboring
-# icons in the reference Dock screenshot.
-MACOS_RUNTIME_ARTWORK_FRACTION = 0.8
+# SDL's Cocoa backend uses this single PNG while the app is running. Match its
+# artwork fraction in the larger ICNS entries so the Dock shows the same size
+# for the running and closed app.
+MACOS_RUNTIME_ARTWORK_FRACTION = 0.824
 
 
 def macos_artwork_fraction( size ):
     if size <= 64:
         return SMALL_ARTWORK_FRACTION
-    if size <= 128:
-        return MEDIUM_ARTWORK_FRACTION
-    return LARGE_ARTWORK_FRACTION
+    return MACOS_RUNTIME_ARTWORK_FRACTION
 
 # Sizes requested from the .icns entry table below (plus the ICO sizes and
 # PNG_SIZE), rendered natively from the SVG instead of resampled.