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/polybar/config.ini

@@ -1,31 +1,34 @@
 [colors]
-bg = #141414
-border = #444649
-text = #feffd3
-dim = #778284
-accent = #afb979
-red = #c06c43
-green = #afb979
-yellow = #c2a86c
-blue = #444649
-magenta = #b4be7b
-cyan = #778284
+bg = #0f0d17
+; true ARGB (AARRGGBB): 75% background, text stays fully opaque
+bg-trans = #bf0f0d17
+border = #3d3752
+text = #e9eefb
+dim = #7f7796
+accent = #92b9ea
+red = #cf6a80
+green = #8fae74
+yellow = #d8a87c
+blue = #7c9ede
+magenta = #b483c0
+cyan = #8ab6c4
 
 [bar/top]
 wm-restack = bspwm
 monitor = ${env:MONITOR:}
 width = 99%
 height = 28
+radius = 10
 bottom = false
 offset-x = 0.5%
 offset-y = 0.5%
 fixed-center = true
 
-background = ${colors.bg}
+background = ${colors.bg-trans}
 foreground = ${colors.text}
 
 border-size = 2
-border-color = ${colors.border}
+border-color = #993d3752
 
 padding = 1
 module-margin = 0
@@ -98,43 +101,43 @@ interval = 1
 format = <label>
 format-padding = 1
 
-label = "%{F#afb979}%{F-}%time% %{F#778284}|%{F-} %date%"
+label = "%{F#92b9ea}%{F-}%time% %{F#7f7796}|%{F-} %date%"
 date = %a %d
 time = %H:%M
 
 ; Resources
 [module/cpu]
 type = custom/script
-exec = "$HOME/.config/scripts/system-info.sh --cpu --normal-color '#b4be7b' --critical-color '#c06c43'"
+exec = "$HOME/.config/scripts/system-info.sh --cpu --normal-color '#92b9ea' --critical-color '#cf6a80'"
 click-left = "$HOME/bin/system-info.sh --cpu --click"
-format = "%{F#b4be7b}CPU%{F-} <label>"
+format = "%{F#92b9ea}CPU%{F-} <label>"
 format-padding = 1
 interval = 2
 
 [module/ram]
 type = custom/script
-exec = "$HOME/.config/scripts/system-info.sh --ram --normal-color '#c2a86c' --critical-color '#c06c43'"
-format = "%{F#c2a86c}RAM%{F-} <label>"
+exec = "$HOME/.config/scripts/system-info.sh --ram --normal-color '#d8a87c' --critical-color '#cf6a80'"
+format = "%{F#d8a87c}RAM%{F-} <label>"
 format-padding = 1
 interval = 2
 
 [module/gpu]
 type = custom/script
-exec = "$HOME/.config/scripts/system-info.sh --gpu --normal-color '#778284' --critical-color '#c06c43'"
+exec = "$HOME/.config/scripts/system-info.sh --gpu --normal-color '#b483c0' --critical-color '#cf6a80'"
 click-left = "$HOME/bin/system-info.sh --gpu --click"
-format = "%{F#778284}GPU%{F-} <label>"
+format = "%{F#b483c0}GPU%{F-} <label>"
 format-padding = 1
 interval = 2
 
 ; Audio
 [module/volume]
 type = custom/script
-exec = "SESSION_TYPE=x11 sh $HOME/.config/scripts/volume.sh --device output --status --disabled-color '#c06c43' --enabled-color '#afb979'"
+exec = "SESSION_TYPE=x11 sh $HOME/.config/scripts/volume.sh --device output --status --disabled-color '#cf6a80' --enabled-color '#8fae74'"
 tail = true
 click-left = "sh $HOME/bin/volume.sh --device output --action toggle"
 scroll-up = "sh $HOME/bin/volume.sh --device output --action increase"
 scroll-down = "sh $HOME/bin/volume.sh --device output --action decrease"
-format = "%{F#afb979}VOL%{F-} <label>"
+format = "%{F#8fae74}VOL%{F-} <label>"
 format-padding = 1
 
 ; Media player
@@ -147,7 +150,7 @@ click-right = playerctl next
 click-middle = playerctl previous
 scroll-up = playerctl volume 0.05+
 scroll-down = playerctl volume 0.05-
-format = "%{F#b4be7b}♫%{F-} <label>"
+format = "%{F#e0919f}♫%{F-} <label>"
 format-padding = 1
 interval = 2
 label-maxlen = 30