Initial commit: SkyOS source code

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

themes/skywallpaper

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+# skywallpaper — set or restore the SkyOS desktop wallpaper
+#
+# Usage:
+#   skywallpaper                        # restore saved wallpaper (called from xinitrc)
+#   skywallpaper /path/to/image.jpg     # set new wallpaper and save it
+#   skywallpaper --color "#6B8FB5"      # set solid color
+#   skywallpaper --reset                # reset to default blue-gray solid color
+#
+# Wallpaper preference is stored in ~/.config/skyos/wallpaper
+
+CONF_DIR="$HOME/.config/skyos"
+CONF_FILE="$CONF_DIR/wallpaper"
+DEFAULT_COLOR="#1A2840"
+WALLPAPER_DIR="/usr/share/skyos/wallpapers"
+
+mkdir -p "$CONF_DIR"
+
+case "${1:-}" in
+    --reset)
+        echo "color:$DEFAULT_COLOR" > "$CONF_FILE"
+        xsetroot -solid "$DEFAULT_COLOR"
+        echo "Wallpaper reset to default color."
+        ;;
+    --color)
+        COLOR="${2:-$DEFAULT_COLOR}"
+        echo "color:$COLOR" > "$CONF_FILE"
+        xsetroot -solid "$COLOR"
+        echo "Wallpaper set to solid $COLOR."
+        ;;
+    "")
+        # Restore from saved config
+        if [[ -f "$CONF_FILE" ]]; then
+            SAVED="$(cat "$CONF_FILE")"
+            if [[ "$SAVED" == color:* ]]; then
+                xsetroot -solid "${SAVED#color:}"
+            elif [[ -f "$SAVED" ]]; then
+                feh --no-fehbg --bg-fill "$SAVED"
+            else
+                xsetroot -solid "$DEFAULT_COLOR"
+            fi
+        else
+            # First run: use default wallpaper if it exists, else solid color
+            if [[ -f "$WALLPAPER_DIR/skyos-default.png" ]]; then
+                feh --no-fehbg --bg-fill "$WALLPAPER_DIR/skyos-default.png"
+                echo "$WALLPAPER_DIR/skyos-default.png" > "$CONF_FILE"
+            else
+                xsetroot -solid "$DEFAULT_COLOR"
+                echo "color:$DEFAULT_COLOR" > "$CONF_FILE"
+            fi
+        fi
+        ;;
+    *)
+        # Set specific image file
+        IMG="$1"
+        if [[ ! -f "$IMG" ]]; then
+            echo "Error: file not found: $IMG" >&2
+            exit 1
+        fi
+        echo "$IMG" > "$CONF_FILE"
+        feh --no-fehbg --bg-fill "$IMG"
+        echo "Wallpaper set to: $IMG"
+        ;;
+esac