Use theme config templates with singular color definition (#4053)

* Attempt to templaterize the theme specific files

* Cleanup

* Slim down

* Combine render into -set

* Pull out the dynamic template rendering again, but simpler

* Fix vars

* Variables are lowercase

* Better presentation

* Fix missing colors

* Provide stripped values too

* Fix colors for regular hex format

* Bring back explicit btop themes

They're too involved to derive from a basic color set

* Make an atomic swap of the theme directories

* No longer used by walker to cancel

* Explain why

* Remove redundant const

* Consistent const naming

* No longe have $THEMES_DIR

* Correct the blue

* Set opencode colors too

* Fix colors for readability

* Move the templates together with the others in default

* Split user themes and default themes

* Fix paths

* Look for both user themes and default themes

Plus speed things up

* Migrate to the new setup where default themes live inside omarchy

* Explicitly store the name of the current theme

* Cleanup

* No longer need omarchy-theme-next since themes are now fully rendered, not symlinks

* Get current theme name from the new theme.name file

* Look for user background images in dedicated directory

* Need yq for toml

* Need yq to parse colors.toml

* Look for backgrounds matching the new theme.name

We no longer have symlinks

* Migrate existing user backgrounds to the new proper location

* Install user backgrounds in the correct path

* Fix quoting

* Just rely on the system theme for opencode and get ready for USRSIG2 being available to live reload

* Fix template generation for rgb colors

migrations/1767306902.sh

@@ -0,0 +1,62 @@
+echo "Migrate to new theme setup"
+
+omarchy-pkg-add yq
+
+# Move user-added backgrounds from Omarchy theme folders to user config
+OMARCHY_DIR="$HOME/.local/share/omarchy"
+USER_BACKGROUNDS_DIR="$HOME/.config/omarchy/backgrounds"
+
+if [[ -d "$OMARCHY_DIR/themes" ]]; then
+  cd "$OMARCHY_DIR"
+
+  # Get list of git-tracked background files (relative to omarchy dir)
+  mapfile -t TRACKED_BACKGROUNDS < <(git ls-files --cached 'themes/*/backgrounds/*' 2>/dev/null)
+
+  # Find all background files and check if they're untracked (user-added)
+  for theme_dir in themes/*/; do
+    theme_name=$(basename "$theme_dir")
+    backgrounds_dir="themes/$theme_name/backgrounds"
+
+    [[ -d "$backgrounds_dir" ]] || continue
+
+    for bg_file in "$backgrounds_dir"/*; do
+      [[ -f "$bg_file" ]] || continue
+
+      # Check if this file is tracked by git
+      is_tracked=false
+      for tracked in "${TRACKED_BACKGROUNDS[@]}"; do
+        if [[ "$tracked" == "$bg_file" ]]; then
+          is_tracked=true
+          break
+        fi
+      done
+
+      if [[ "$is_tracked" == "false" ]]; then
+        # This is a user-added background, move it to user config
+        user_theme_bg_dir="$USER_BACKGROUNDS_DIR/$theme_name"
+        mkdir -p "$user_theme_bg_dir"
+        mv "$bg_file" "$user_theme_bg_dir/"
+        echo "Moved user background: $bg_file -> $user_theme_bg_dir/"
+      fi
+    done
+  done
+fi
+
+THEMES_DIR="$HOME/.config/omarchy/themes"
+CURRENT_THEME_LINK="$HOME/.config/omarchy/current/theme"
+
+# Get current theme name from symlink before removing anything
+CURRENT_THEME_NAME=""
+if [[ -L $CURRENT_THEME_LINK ]]; then
+  CURRENT_THEME_NAME=$(basename "$(readlink "$CURRENT_THEME_LINK")")
+elif [[ -f "$HOME/.config/omarchy/current/theme.name" ]]; then
+  CURRENT_THEME_NAME=$(cat "$HOME/.config/omarchy/current/theme.name")
+fi
+
+# Remove all symlinks from ~/.config/omarchy/themes
+find "$THEMES_DIR" -mindepth 1 -maxdepth 1 -type l -delete
+
+# Re-apply the current theme with the new system
+if [[ -n $CURRENT_THEME_NAME ]]; then
+  omarchy-theme-set "$CURRENT_THEME_NAME"
+fi