Phase 3: screenshot hotkeys, clipboard history, Papirus icon theme

Screenshots (PrintScreen / Shift+PrintScreen):
- PrintScreen → full screenshot saved to ~/Pictures via scrot
- Shift+PrintScreen → interactive region select via scrot -s
- Both send a dunst notification on save
- scrot added to packages

Clipboard manager:
- Replace janky PRIMARY/CLIPBOARD sync loop with parcellite
- parcellite provides clipboard history, survives app close,
  shows a tray icon for browsing past entries
- parcellite added to packages

Icon theme:
- Switch from Adwaita to Papirus-Dark across GTK2, GTK3 settings,
  and theme index.theme
- papirus-icon-theme added to packages

Also fix remaining stale sky* references in menu.c (skywallpaper,
pkill skywm) and events.c (skylauncher).

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

iso/docker/entrypoint.sh

@@ -84,6 +84,9 @@ xfce4-power-manager
 bluez
 blueman
 xclip
+scrot
+parcellite
+papirus-icon-theme
 zip
 unzip
 p7zip
@@ -283,7 +286,7 @@ cat > "$HOME/.config/gtk-3.0/settings.ini" <<EOF
 [Settings]
 gtk-theme-name=OrionOS
 gtk-font-name=Sans 10
-gtk-icon-theme-name=Adwaita
+gtk-icon-theme-name=Papirus-Dark
 gtk-cursor-theme-name=Adwaita
 EOF
 cat > "$HOME/.gtkrc-2.0" <<EOF
@@ -307,13 +310,8 @@ nm-applet &
 # Compositor
 picom --config /etc/orionos/picom.conf &
 
-# Clipboard sync: keep PRIMARY and CLIPBOARD selections in sync
-if command -v xclip &>/dev/null; then
-    while true; do
-        xclip -o -sel primary 2>/dev/null | xclip -i -sel clipboard 2>/dev/null || true
-        sleep 1
-    done &
-fi
+# Clipboard manager: history survives app close, tray icon for paste menu
+parcellite &
 
 # Screen locker daemon (locks after idle timeout)
 xscreensaver -no-splash &

themes/OrionOS/gtk-2.0/gtkrc

@@ -64,7 +64,7 @@ style "entry" {
 class "GtkEntry" style "entry"
 
 gtk-theme-name        = "OrionOS"
-gtk-icon-theme-name   = "Adwaita"
+gtk-icon-theme-name   = "Papirus-Dark"
 gtk-font-name         = "Sans 10"
 gtk-cursor-theme-name = "DMZ-White"
 gtk-button-images     = 0

themes/OrionOS/index.theme

@@ -7,6 +7,6 @@ Encoding=UTF-8
 [X-GNOME-Metatheme]
 GtkTheme=OrionOS
 MetacityTheme=OrionOS
-IconTheme=Adwaita
+IconTheme=Papirus-Dark
 CursorTheme=DMZ-White
 ButtonLayout=close:minimize,maximize

wm/src/events.c

@@ -286,7 +286,17 @@ void on_key_press(WM *wm, XKeyEvent *e) {
 
     /* Alt+F1 — launcher */
     if ((e->state & Mod1Mask) && sym == XK_F1)
-        system("skylauncher &");
+        system("orionlauncher &");
+
+    /* PrintScreen — full screenshot to ~/Pictures */
+    if (sym == XK_Print) {
+        if (e->state & ShiftMask)
+            system("mkdir -p ~/Pictures && scrot -s ~/Pictures/screenshot_%Y%m%d_%H%M%S.png"
+                   " && notify-send 'Screenshot' 'Region saved to ~/Pictures' &");
+        else
+            system("mkdir -p ~/Pictures && scrot ~/Pictures/screenshot_%Y%m%d_%H%M%S.png"
+                   " && notify-send 'Screenshot' 'Saved to ~/Pictures' &");
+    }
 
     /* Super+Left — snap left */
     if ((e->state & Mod4Mask) && sym == XK_Left && wm->focused)

wm/src/menu.c

@@ -15,10 +15,10 @@ static const MenuItem MENU_ITEMS[] = {
     { "Volume Control",    "pavucontrol &"                              },
     { "Display Settings",  "arandr &"                                   },
     { "──────────────────", NULL                                         },
-    { "Change Wallpaper",  "skywallpaper --reset &"                     },
+    { "Change Wallpaper",  "orionwallpaper --reset &"                    },
     { "──────────────────", NULL                                         },
-    { "Restart OrionWM",     "pkill skywm; sleep 0.2; skywm &"           },
-    { "Quit OrionOS",        "pkill skywm"                                },
+    { "Restart OrionWM",   "pkill orionwm; sleep 0.2; orionwm &"        },
+    { "Quit OrionOS",      "pkill orionwm"                              },
 };
 #define MENU_COUNT  ((int)(sizeof(MENU_ITEMS) / sizeof(MENU_ITEMS[0])))