picom and minor tmux fix

home-manager/features/cli/zsh/default.nix

@@ -35,7 +35,8 @@ in {
       [[ ! -f ${./p10k.zsh} ]] || source ${./p10k.zsh}
       eval "$(zoxide init --cmd cd zsh)"
       if [ -x "$(command -v tmux)" ] && [ -n "$DISPLAY" ] && [ -z "$TMUX" ]; then
-        exec tmux new-session -A -s $USER >/dev/null 2>&1
+        # exec tmux new-session -A -s $USER >/dev/null 2>&1
+        exec tmux new-session -s $USER >/dev/null 2>&1
       fi
     '';
   };

home-manager/features/desktop/dwm/default.nix

@@ -37,5 +37,8 @@
     ".zprofile" = {
       source = ./.zprofile; 
     };
+    ".config/picom/black_to_transparent.frag" = {
+      source = ./black_to_transparent.frag;
+    };
   };
 }

home-manager/features/desktop/dwm/picom.nix

@@ -33,7 +33,17 @@
     vSync = true;
 
     settings = {
+      shadow = {
+        radius = 3;
+      };
+
       corner-radius = 9;
+      rounder-corners-exclude = [
+        "window_type = 'dock'"
+        "window_type = 'desktop'"
+        "class_g = 'Dunst'"
+      ];
+
       blur = {
         method = "dual_kawase";
         strength = 10;
@@ -41,6 +51,49 @@
         background-frame = false;
         background-fixed = false;
       };
+
+      blur-kern = "3x3box";
+
+      # xprop | grep -i 'class'
+      opacity-rule = [
+          "90:class_g = 'neovide'"
+          "90:class_g = 'code-oss'"
+          "90:class_g = 'discord'"
+          "90:class_g = 'Emacs'"
+          "90:class_g = 'TelegramDesktop'"
+          "90:class_g = 'Spotify'"
+          "90:class_g = 'easyeffects'"
+          "90:class_g = 'kitty'"
+          "90:class_g = 'Nemo'"
+          "97:class_g = 'firefox'"
+      ];
+
+      # Exclude conditions for background blur.
+      # blur-background-exclude = []
+      blur-background-exclude = [
+        "window_type = 'dock'"
+        "window_type = 'desktop'"
+        "_GTK_FRAME_EXTENTS@:c"
+      ];
+
+      mark-wmwin-focused = true;
+      mark-ovredir-focused = true;
+      detect-rounded-corners = true;
+      detect-client-opacity = true;
+      unredir-if-possible = false;
+      detect-transient = true;
+      detect-client-leader = true;
+      use-damage = true;
+
+      window-shader-fg-rule = [
+        # "black_to_transparent.frag:class_g = 'stalonetray'",
+        # "black_to_transparent.frag:class_g = 'Minecraft 1.7.10'",
+        # "black_to_transparent.frag:class_g = 'i3lock'"
+        # "black_to_transparent.frag:focused = true",
+        # "black_to_transparent.frag:focused != true",
+        #"sphere.glsl:focused != true"
+        #"nordify.glsl:class_g = 'miru'"
+      ];
     };
  };
 }