Fix dynamic theming: enable filesystem writes and add theme switching

- Add LD_LIBRARY_PATH and ILLOGICAL_IMPULSE_VIRTUAL_ENV to quickshell service
- Set ProtectSystem=false to allow color generation scripts to write files
- Fix MaterialThemeLoader to properly detect file changes with onFileChanged
- Add switchwall-wrapper.sh to source environment variables dynamically
- Fix light/dark mode buttons to use Process with current wallpaper
- Add --choose flag to switchwall.sh for wallpaper selection dialog
- Add IPC commands 'dark' and 'light' for console theme switching
- Update keybinds: Ctrl+Super+T (choose), Ctrl+Super+Shift+T (random)
- Fix terminal color application in applycolor.sh

configs/quickshell/ii/scripts/colors/generate_colors_material.py

@@ -2,6 +2,7 @@
 import argparse
 import math
 import json
+import os
 from PIL import Image
 from materialyoucolor.quantize import QuantizeCelebi
 from materialyoucolor.score.score import Score
@@ -86,6 +87,11 @@ if args.path is not None:
 elif args.color is not None:
     argb = hex_to_argb(args.color)
     hct = Hct.from_int(argb)
+elif args.cache is not None and os.path.exists(args.cache):
+    with open(args.cache, 'r') as file:
+        cached_color = file.read().strip()
+    argb = hex_to_argb(cached_color)
+    hct = Hct.from_int(argb)
 
 if args.scheme == 'scheme-fruit-salad':
     from materialyoucolor.scheme.scheme_fruit_salad import SchemeFruitSalad as Scheme

configs/quickshell/ii/scripts/colors/switchwall-wrapper.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+# Wrapper to set up environment for switchwall.sh
+
+# Source environment config
+[ -f "$HOME/.config/quickshell/env.sh" ] && source "$HOME/.config/quickshell/env.sh"
+
+export ILLOGICAL_IMPULSE_VIRTUAL_ENV="${ILLOGICAL_IMPULSE_VIRTUAL_ENV:-$HOME/.local/state/quickshell/.venv}"
+
+echo "[wrapper] Called with args: $@" >> /tmp/switchwall-wrapper.log
+echo "[wrapper] LD_LIBRARY_PATH: $LD_LIBRARY_PATH" >> /tmp/switchwall-wrapper.log
+
+# Run switchwall.sh with all arguments
+exec "$(dirname "$0")/switchwall.sh" "$@"

configs/quickshell/ii/scripts/colors/switchwall.sh

@@ -1,5 +1,16 @@
 #!/usr/bin/env bash
 
+# Log execution
+LOG="/tmp/switchwall.log"
+echo "[$(date)] switchwall.sh started" >> "$LOG"
+echo "ILLOGICAL_IMPULSE_VIRTUAL_ENV=$ILLOGICAL_IMPULSE_VIRTUAL_ENV" >> "$LOG"
+
+# Ensure LD_LIBRARY_PATH is set for Python venv
+if [ -z "$LD_LIBRARY_PATH" ]; then
+    export LD_LIBRARY_PATH="/run/current-system/sw/lib"
+    echo "Set LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >> "$LOG"
+fi
+
 QUICKSHELL_CONFIG_NAME="ii"
 XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
 XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
@@ -84,9 +95,10 @@ check_and_prompt_upscale() {
             img_height=$(identify -format "%h" "$img" 2>/dev/null)
         fi
         if [[ "$img_width" -lt "$min_width_desired" || "$img_height" -lt "$min_height_desired" ]]; then
-            action=$(notify-send "Upscale?" \
+            action=$(timeout 5 notify-send "Upscale?" \
                 "Image resolution (${img_width}x${img_height}) is lower than screen resolution (${min_width_desired}x${min_height_desired})" \
                 -A "open_upscayl=Open Upscayl"\
+                -t 5000 \
                 -a "Wallpaper switcher")
             if [[ "$action" == "open_upscayl" ]]; then
                 if command -v upscayl &>/dev/null; then
@@ -187,7 +199,10 @@ switch() {
             exit 0
         fi
 
-        check_and_prompt_upscale "$imgpath" &
+        # Only check upscale if not using --noswitch
+        if [[ -z "$noswitch_flag" ]]; then
+            check_and_prompt_upscale "$imgpath" &
+        fi
         kill_existing_mpvpaper
 
         if is_video "$imgpath"; then
@@ -281,11 +296,34 @@ switch() {
     fi
 
     matugen "${matugen_args[@]}"
-    source "$(eval echo $ILLOGICAL_IMPULSE_VIRTUAL_ENV)/bin/activate"
-    python3 "$SCRIPT_DIR/generate_colors_material.py" "${generate_colors_material_args[@]}" \
-        > "$STATE_DIR"/user/generated/material_colors.scss
-    "$SCRIPT_DIR"/applycolor.sh
-    deactivate
+    echo "[$(date)] Running python script" >> "$LOG"
+    "$(eval echo $ILLOGICAL_IMPULSE_VIRTUAL_ENV)/bin/python3" "$SCRIPT_DIR/generate_colors_material.py" "${generate_colors_material_args[@]}" \
+        > "$STATE_DIR"/user/generated/material_colors.scss 2>> "$LOG"
+    echo "[$(date)] Python done, scss size: $(wc -l < "$STATE_DIR"/user/generated/material_colors.scss)" >> "$LOG"
+    
+    # Only convert to JSON if SCSS was generated successfully
+    if [ -s "$STATE_DIR"/user/generated/material_colors.scss ]; then
+        # Convert SCSS to JSON for quickshell MaterialThemeLoader
+        echo "[$(date)] Converting SCSS to JSON" >> "$LOG"
+        awk -F': ' '/^\$/ {gsub(/\$|;/, "", $0); print "\"" $1 "\": \"" $2 "\","}' \
+            "$STATE_DIR"/user/generated/material_colors.scss | \
+            sed '$ s/,$//' | \
+            (echo "{"; cat; echo "}") > "$STATE_DIR"/user/generated/colors.json.tmp
+        mv "$STATE_DIR"/user/generated/colors.json.tmp "$STATE_DIR"/user/generated/colors.json
+        sync "$STATE_DIR"/user/generated/colors.json
+        echo "[$(date)] JSON created, size: $(wc -l < "$STATE_DIR"/user/generated/colors.json)" >> "$LOG"
+    else
+        echo "[$(date)] SCSS generation failed, skipping JSON creation" >> "$LOG"
+    fi
+    
+    "$XDG_CONFIG_HOME/quickshell/scripts/colors/applycolor.sh"
+    
+    # Wait for all file operations to complete
+    wait
+    sleep 1
+    
+    # Trigger quickshell to reload theme via IPC (doesn't restart the process)
+    quickshell ipc -c ii call materialTheme reload 2>/dev/null || true
 
     # Pass screen width, height, and wallpaper path to post_process
     max_width_desired="$(hyprctl monitors -j | jq '([.[].width] | min)' | xargs)"
@@ -300,6 +338,7 @@ main() {
     color_flag=""
     color=""
     noswitch_flag=""
+    choose_flag=""
 
     get_type_from_config() {
         jq -r '.appearance.palette.type' "$SHELL_CONFIG_FILE" 2>/dev/null || echo "auto"
@@ -339,6 +378,10 @@ main() {
                 imgpath=$(jq -r '.background.wallpaperPath' "$SHELL_CONFIG_FILE" 2>/dev/null || echo "")
                 shift
                 ;;
+            --choose)
+                choose_flag="1"
+                shift
+                ;;
             *)
                 if [[ -z "$imgpath" ]]; then
                     imgpath="$1"
@@ -369,8 +412,17 @@ main() {
 
     # Only prompt for wallpaper if not using --color and not using --noswitch and no imgpath set
     if [[ -z "$imgpath" && -z "$color_flag" && -z "$noswitch_flag" ]]; then
-        cd "$(xdg-user-dir PICTURES)/Wallpapers/showcase" 2>/dev/null || cd "$(xdg-user-dir PICTURES)/Wallpapers" 2>/dev/null || cd "$(xdg-user-dir PICTURES)" || return 1
-        imgpath="$(kdialog --getopenfilename . --title 'Choose wallpaper')"
+        # Try to pick a random wallpaper from Wallpapers directory
+        WALLPAPER_DIR="$(xdg-user-dir PICTURES)/Wallpapers"
+        if [[ -d "$WALLPAPER_DIR" ]] && [[ -z "$choose_flag" ]]; then
+            imgpath=$(find "$WALLPAPER_DIR" -type f \( -name "*.jpg" -o -name "*.png" \) 2>/dev/null | shuf -n 1)
+        fi
+        
+        # If --choose flag is set or still no wallpaper, prompt with kdialog
+        if [[ -n "$choose_flag" ]] || [[ -z "$imgpath" ]]; then
+            cd "$(xdg-user-dir PICTURES)/Wallpapers/showcase" 2>/dev/null || cd "$(xdg-user-dir PICTURES)/Wallpapers" 2>/dev/null || cd "$(xdg-user-dir PICTURES)" || return 1
+            imgpath="$(kdialog --getopenfilename . --title 'Choose wallpaper')"
+        fi
     fi
 
     # If type_flag is 'auto', detect scheme type from image (after imgpath is set)