Program icons at 128px, no frame

Core.py

@@ -237,10 +237,14 @@ def BuildTheme() -> ft.Theme:
 
 def ChipButtonStyle(Accent: str = "") -> ft.ButtonStyle:
     """SaraView's button look: SurfaceAlt fill, 1px accent border, small radius.
-    Accent defaults to Mauve; Remove buttons pass Palette.Red."""
+    Accent defaults to Mauve; Remove buttons pass Palette.Red. Disabled buttons
+    are greyed out (muted text, plain border, no fill) so it's obvious they
+    can't be pressed."""
+    Disabled = ft.ControlState.DISABLED
+    Default = ft.ControlState.DEFAULT
     return ft.ButtonStyle(
-        color=Palette.Text,
-        bgcolor=Palette.Surface0,
-        side=ft.BorderSide(1, Accent or Palette.Mauve),
+        color={Disabled: Palette.Overlay0, Default: Palette.Text},
+        bgcolor={Disabled: Palette.Mantle, Default: Palette.Surface0},
+        side={Disabled: ft.BorderSide(1, Palette.Surface1), Default: ft.BorderSide(1, Accent or Palette.Mauve)},
         shape=ft.RoundedRectangleBorder(radius=4),
     )