Refactor cassette-futurism rice from KDE Plasma to XFCE

- Replace KDE Plasma 6 with XFCE desktop environment
- Remove plasma.nix (KDE config), add xfce.nix (XFCE config via xfconf)
- Add picom.nix compositor with CRT green glow effects (#00FF00 shadows)
- Configure XFCE with hidden menubars, dark theme, and retro aesthetics
- Replace KDE packages with XFCE equivalents (konsole→xfce4-terminal, kate→mousepad, gwenview→ristretto, spectacle→xfce4-screenshooter)
- Keep ly display manager, preserve all Stylix theming (cassette colors, NGE wallpaper, fonts)
- Lower memory usage and faster startup compared to KDE Plasma

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 137 insertions, 0 deletions

diff --git a/home/rices/cassette-futurism/picom.nix b/home/rices/cassette-futurism/picom.nix
new file mode 100644
index 0000000..26518e0
--- /dev/null
+++ b/home/rices/cassette-futurism/picom.nix
@@ -0,0 +1,137 @@
+{
+  config,
+  pkgs,
+  ...
+}: let
+  vars = import ./variables.nix;
+in {
+  # Picom compositor configuration
+  # CRT-inspired effects: green glow shadows, transparency, blur, rounded corners
+
+  services.picom = {
+    enable = true;
+
+    backend = "glx";
+    vSync = true;
+
+    # Opacity settings
+    opacity = 0.95;
+    activeOpacity = 0.95;
+    inactiveOpacity = 0.90;
+
+    opacityRules = [
+      "90:class_g = 'Xfce4-terminal'"
+      "90:class_g = 'xfce4-terminal'"
+      "95:class_g = 'Thunar'"
+      "95:class_g = 'Mousepad'"
+      "90:class_g = 'Rofi'"
+      "100:class_g = 'Firefox'"
+      "100:class_g = 'Chromium'"
+    ];
+
+    # Fading
+    fade = true;
+    fadeDelta = 5;
+    fadeSteps = [ 0.028 0.03 ];
+
+    # Shadows - CRT green glow effect
+    shadow = true;
+    shadowOpacity = 0.6;
+    shadowOffsets = [ (-15) (-15) ];
+    shadowRadius = 20;
+
+    # CRT green glow color (hex format: #RRGGBB)
+    shadowColor = "#00FF00";
+
+    shadowExclude = [
+      "name = 'Notification'"
+      "class_g = 'Conky'"
+      "class_g ?= 'Notify-osd'"
+      "class_g = 'Cairo-clock'"
+      "_GTK_FRAME_EXTENTS@:c"
+    ];
+
+    # Blur settings
+    blur = {
+      enable = true;
+      method = "dual_kawase";
+      strength = 6;
+    };
+
+    blurExclude = [
+      "window_type = 'dock'"
+      "window_type = 'desktop'"
+      "_GTK_FRAME_EXTENTS@:c"
+    ];
+
+    # Rounded corners - 12px radius
+    cornerRadius = 12;
+
+    roundedCornersExclude = [
+      "window_type = 'dock'"
+      "window_type = 'desktop'"
+    ];
+
+    # Window animations (picom-pijulius style)
+    # Note: Standard picom may not support all animation options
+    # If animations cause issues, these can be removed
+    settings = {
+      # Animation settings (if using picom-pijulius)
+      animations = true;
+      animation-stiffness = 200;
+      animation-window-mass = 0.5;
+      animation-dampening = 20;
+      animation-clamping = false;
+
+      # Animation for window open - slide down (CRT scan-line effect)
+      animation-for-open-window = "slide-down";
+
+      # Animation for window close - slide up
+      animation-for-unmap-window = "slide-up";
+
+      # Animation for transient windows - zoom
+      animation-for-transient-window = "zoom";
+
+      # Focus/unfocus animations
+      animation-for-prev-tag = "minimize";
+      animation-for-next-tag = "slide-down";
+
+      # Additional GLX backend settings
+      glx-no-stencil = true;
+      glx-no-rebind-pixmap = true;
+      use-damage = true;
+
+      # Detect settings
+      detect-rounded-corners = true;
+      detect-client-opacity = true;
+      detect-transient = true;
+      detect-client-leader = true;
+
+      # Window type settings
+      wintypes = {
+        tooltip = {
+          fade = true;
+          shadow = false;
+          opacity = 0.90;
+          focus = true;
+          full-shadow = false;
+        };
+        dock = {
+          shadow = false;
+          clip-shadow-above = true;
+        };
+        dnd = {
+          shadow = false;
+        };
+        popup_menu = {
+          opacity = 0.90;
+          shadow = true;
+        };
+        dropdown_menu = {
+          opacity = 0.90;
+          shadow = true;
+        };
+      };
+    };
+  };
+}