Sakura Line: retheme the whole desktop from the wallpaper

Palette sampled from bspwm/wallpaper/wallpaper.jpg and applied per-role
(not per-hex, so terminal green stays green and nvim's LineNr/Comment
stay recessive) across st, kitty, polybar, rofi, dunst, nvim, qt5ct/qt6ct
and GTK 2/3/4.

Also:
- rofi drun centred, icons enabled
- polybar translucent (true ARGB) and rounded; picom corner-radius, with
  the desktop layer and fullscreen windows excluded
- fix qt5ct color_scheme_path pointing at a nonexistent /home/carrie
- export QT_QPA_PLATFORMTHEME so qt6ct is actually consulted
- point GTK at an icon theme that exists on this system
- add .config/rice: one-shot install.sh (--dry-run supported), package
  list, vendored st config.h (gitignored upstream) and the particles
  wallpaper-layer source, so a clone reproduces the rice

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Cn3dHfbgNYdbZvzb1b3GQt

.config/bspwm/bspwmrc

@@ -1,5 +1,8 @@
 #! /bin/bash
 
+# Qt apps follow qt6ct, which reads ~/.config/qt6ct/colors/dc.conf
+export QT_QPA_PLATFORMTHEME=qt6ct
+
 # Start sxhkd if it's not already running
 pgrep -x sxhkd >/dev/null || sxhkd -c ~/.config/bspwm/sxhkdrc &
 
@@ -14,7 +17,7 @@ export XDG_CURRENT_DESKTOP="bspwm"
 sh -c 'function shenv() { export "$1=$2"; }; source ~/.env;'
 
 # Workspaces Configuration
-bspc monitor DisplayPort-1 -d 1 2 3 4 5 6 7 8
+bspc monitor DisplayPort-0 -d 1 2 3 4 5 6 7 8
 
 # Enable window focus follow mouse pointer
 bspc config focus_follows_pointer true
@@ -29,7 +32,10 @@ if [[ -n $monitor && -n $resolution && -n $refresh_rate ]]; then
 fi
 
 # Set the border colors for focused and normal windows
-bspc config focused_border_color "#727d53"
+bspc config focused_border_color "#92b9ea"
+bspc config normal_border_color "#201b30"
+bspc config active_border_color "#3d3752"
+bspc config presel_feedback_color "#b483c0"
 bspc config border_width 2
 bspc config borderless_monocle true
 
@@ -65,7 +71,10 @@ bspc rule -a 'gamescope' desktop=11
 bspc rule -a 'legcord' desktop=10
 
 # Resources and Utilities
-dbus-update-activation-environment --systemd XDG_CURRENT_DESKTOP
+# DISPLAY/XAUTHORITY must reach systemd-user + D-Bus or graphical portal backends
+# (xdg-desktop-portal-gtk, used by browser file pickers) fail with "cannot open display".
+systemctl --user import-environment DISPLAY XAUTHORITY XDG_CURRENT_DESKTOP
+dbus-update-activation-environment --systemd DISPLAY XAUTHORITY XDG_CURRENT_DESKTOP
 xrdb merge $HOME/.Xresources
 xsettingsd &
 dunst &

.config/bspwm/picom.conf

@@ -46,3 +46,16 @@ shadow = false;
  detect-client-opacity = true;
  use-damage = true;
  log-level = "warn";
+
+# --- rounded corners ---
+corner-radius = 12;
+round-borders = 1;
+rounded-corners-exclude = [
+  # the particles layer is a full-screen desktop window; clipping it would
+  # notch the corners of the field
+  "window_type = 'desktop'",
+  # polybar rounds its own background
+  "window_type = 'dock'",
+  # never round a fullscreen game
+  "_NET_WM_STATE@:32a *= '_NET_WM_STATE_FULLSCREEN'",
+];

.config/bspwm/sxhkdrc

@@ -1,3 +1,7 @@
+# Toggle Scribe Recording
+super + shift + space
+    pkill -USR1 -f /home/sarthak/projects/scribe/scribe.py
+
 # System binding
 super + {Return,v,w,x,b,period}
     {st, \