feat(menu): Look & Feel category — theme, wallpaper, night light (item 19)

The gate was >=3 appearance entries and it's met: the root's Theme row
becomes "Look & Feel" (pango-escaped & — the root passes
-markup-rows; matched on *Look*), a new lookfeel submenu carries the
Theme grid (SUPER+T hint), Next wallpaper (SUPER+SHIFT+T hint via the
new generalized hintForAction, which menuHint is now sugar over), and
the Night light toggle moved out of System — which thins by one row.
The root stays at six entries; both direct binds still hit the leaves.

Verified: V0; V1 — rendered menu passes bash -n with the mode, escaped
label and relocated night-light row; visual — tokyo-night 1080p
capture renders "Look & Feel" correctly with hints intact. Submenu
flow queued for a session test (HARDWARE-QUEUE).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

modules/home/rofi.nix

@@ -138,11 +138,12 @@ let
   # Dimmed keybind hints on menu rows (item 28c) — the same keybinds.nix
   # + prettyKeys the cheatsheet uses, so they can never drift from the
   # live binds. Pango spans; the menus that show them pass -markup-rows.
-  # Empty (no hint) when a module has no direct bind.
-  menuHint = module:
-    let m = lib.filter (b: b.action == "exec, nomarchy-menu ${module}") keybinds.binds;
+  # Empty (no hint) when nothing binds the action.
+  hintForAction = action:
+    let m = lib.filter (b: b.action == action) keybinds.binds;
     in lib.optionalString (m != [ ])
       "  <span size='small' alpha='55%'>${prettyKeys (lib.head m)}</span>";
+  menuHint = module: hintForAction "exec, nomarchy-menu ${module}";
   # Apps opens rofi drun directly, not a nomarchy-menu module.
   appsHint = "  <span size='small' alpha='55%'>SUPER + D</span>";
 
@@ -398,6 +399,26 @@ ${themeRows}
           *"Record screen"*)           exec nomarchy-record start screen ;;
         esac ;;
 
+      lookfeel)
+        # Look & Feel — appearance grouped (item 19): the theme picker,
+        # wallpaper cycling, night light. The root stays six rows; the
+        # SUPER+T / SUPER+SHIFT+T direct binds still hit the leaves.
+        choice=$( {
+          row "Theme${menuHint "theme"}" preferences-desktop-theme
+          row "Next wallpaper${hintForAction "exec, nomarchy-theme-sync bg next"}" preferences-desktop-wallpaper
+          if systemctl --user is-active --quiet hyprsunset.service 2>/dev/null
+          then row "Night light (on)"  weather-clear-night
+          else row "Night light (off)" weather-clear-night
+          fi
+          back
+        } | rofi -dmenu -show-icons -markup-rows -p "Look & Feel") || exit 0
+        case "$choice" in
+          "$BACK")           exec "$0" ;;
+          *Theme*)           exec "$0" theme ;;
+          *wallpaper*)       exec nomarchy-theme-sync bg next ;;
+          *"Night light"*)   exec "$0" nightlight ;;
+        esac ;;
+
       display-profile)
         # Named multi-output layouts (nomarchy.displayProfiles). Applying is
         # instant (hyprctl per entry, via nomarchy-display-profile) and
@@ -605,10 +626,6 @@ ${themeRows}
           row "Display" video-display
           command -v system-config-printer >/dev/null 2>&1 && row "Printers" printer
           row "Do Not Disturb${menuHint "dnd"}" notification-disabled
-          if systemctl --user is-active --quiet hyprsunset.service 2>/dev/null
-          then row "Night light (on)"  weather-clear-night
-          else row "Night light (off)" weather-clear-night
-          fi
           if [ "$(nomarchy-theme-sync get settings.autoTimezone 2>/dev/null)" = true ]
           then row "Auto timezone (on)"  preferences-system-time
           else row "Auto timezone (off)" preferences-system-time
@@ -636,7 +653,6 @@ ${themeRows}
           *Display*)          exec "$0" display ;;
           *Printers*)         exec "$0" printers ;;
           *"Do Not Disturb"*) exec "$0" dnd ;;
-          *"Night light"*)    exec "$0" nightlight ;;
           *"Auto timezone"*)  exec "$0" autotimezone ;;
           *"Auto-commit"*)    exec "$0" autocommit ;;
           *Snapshots*)        exec "$0" snapshot ;;
@@ -651,7 +667,7 @@ ${themeRows}
         # to keep at the top; everything else lives under Tools or System.
         choice=$( {
           row "Apps${appsHint}"        applications-all
-          row "Theme${menuHint "theme"}"       preferences-desktop-theme
+          row "Look &amp; Feel" preferences-desktop-theme
           row "Tools"       applications-utilities
           row "System"      preferences-system
           row "Power${menuHint "power"}"       system-shutdown
@@ -659,7 +675,7 @@ ${themeRows}
         } | rofi -dmenu -show-icons -markup-rows -p Menu) || exit 0
         case "$choice" in
           *Apps*)        exec rofi -show drun ;;
-          *Theme*)       exec "$0" theme ;;
+          *Look*)        exec "$0" lookfeel ;;
           *Tools*)       exec "$0" tools ;;
           *System*)      exec "$0" system ;;
           *Power*)       exec "$0" power ;;
@@ -667,7 +683,7 @@ ${themeRows}
         esac ;;
 
       *)
-        echo "usage: nomarchy-menu [tools|system|power|power-profile|theme|clipboard|calc|files|emoji|web|network|bluetooth|audio|display|display-profile|printers|capture|colorpicker|keybinds|ask|dnd|nightlight|autotimezone|autocommit|vpn|snapshot]" >&2
+        echo "usage: nomarchy-menu [lookfeel|tools|system|power|power-profile|theme|clipboard|calc|files|emoji|web|network|bluetooth|audio|display|display-profile|printers|capture|colorpicker|keybinds|ask|dnd|nightlight|autotimezone|autocommit|vpn|snapshot]" >&2
         exit 64 ;;
     esac
   '';