Create the shared themes folder with the built-in themes

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Core.py

@@ -109,11 +109,50 @@ _ThemeRoleMap = {
 }
 
 
+# The themes every SaraSuite program seeds into ThemesDir if they're missing
+# (same values as SaraFem's and SaraView's), so whichever program is installed
+# first, the folder and these three are there to choose from.
+BuiltinThemes: dict[str, dict[str, str]] = {
+    "CatppuccinMocha": {
+        "Background": "#1e1e2e", "Surface": "#181825", "SurfaceAlt": "#313244", "Border": "#45475a",
+        "Text": "#cdd6f4", "TextMuted": "#6c7086", "Black": "#11111b", "White": "#cdd6f4",
+        "Red": "#f38ba8", "Orange": "#fab387", "Yellow": "#f9e2af", "Green": "#a6e3a1",
+        "Blue": "#89b4fa", "Purple": "#cba6f7",
+    },
+    "Forest": {
+        "Background": "#1b2420", "Surface": "#141b17", "SurfaceAlt": "#243029", "Border": "#334539",
+        "Text": "#d6e5d0", "TextMuted": "#7c9184", "Black": "#0d120f", "White": "#eef5ea",
+        "Red": "#e0685a", "Orange": "#e0a458", "Yellow": "#e0c458", "Green": "#7fb069",
+        "Blue": "#5c9e8f", "Purple": "#9b7fb0",
+    },
+    "Gruvbox": {
+        "Background": "#282828", "Surface": "#1d2021", "SurfaceAlt": "#3c3836", "Border": "#504945",
+        "Text": "#ebdbb2", "TextMuted": "#a89984", "Black": "#1d2021", "White": "#fbf1c7",
+        "Red": "#fb4934", "Orange": "#fe8019", "Yellow": "#fabd2f", "Green": "#b8bb26",
+        "Blue": "#83a598", "Purple": "#d3869b",
+    },
+}
+
+
+def EnsureSharedThemes() -> None:
+    """Create ThemesDir with the built-in themes that aren't there yet
+    (never overwriting one: it may have been edited)."""
+    try:
+        ThemesDir.mkdir(parents=True, exist_ok=True)
+        for Name, RoleValues in BuiltinThemes.items():
+            ThemeFile = ThemesDir / f"{Name}.toml"
+            if not ThemeFile.exists():
+                ThemeFile.write_text(tomlkit.dumps({"Palette": RoleValues}))
+    except OSError:
+        pass  # read-only or full: the built-in Catppuccin Mocha values still apply
+
+
 def ApplyTheme(ThemeName: str) -> None:
     """Mutate Palette in place from ~/.config/SaraSuite/Themes/<ThemeName>.toml.
-    Falls back to the built-in Catppuccin Mocha values if the file is missing
-    (SaraFem seeds that directory; SaraSuite only reads it). Must run before
-    any control reads Palette.X."""
+    Seeds the built-in themes first (EnsureSharedThemes); a missing file keeps
+    the built-in Catppuccin Mocha values. Must run before any control reads
+    Palette.X."""
+    EnsureSharedThemes()
     ThemeFile = ThemesDir / f"{ThemeName}.toml"
     if not ThemeFile.exists():
         return

Settings.py

@@ -8,8 +8,8 @@ from typing import Callable
 import flet as ft
 
 from Core import (
-    AppConfig, BundledFontFamily, ChildEnvironment, ChipButtonStyle, IsWindows, LoadSharedSettings, Palette,
-    SharedSettings, ThemesDir,
+    AppConfig, BundledFontFamily, ChildEnvironment, ChipButtonStyle, EnsureSharedThemes, IsWindows,
+    LoadSharedSettings, Palette, SharedSettings, ThemesDir,
 )
 from Installer import DefaultAnswers, DefaultOptions
 from Manifests import Program
@@ -25,8 +25,9 @@ def _Note(Text: str) -> ft.Text:
 
 
 def _Themes() -> list[str]:
+    EnsureSharedThemes()
     Names = {Path.stem for Path in ThemesDir.glob("*.toml")} if ThemesDir.is_dir() else set()
-    Names.add("CatppuccinMocha")  # built in, even before SaraFem seeds the folder
+    Names.add("CatppuccinMocha")  # built in, even where the folder can't be written
     return sorted(Names)