diff --git a/nix/home/hyprland/hyprland-execution.nix b/nix/home/hyprland/hyprland-execution.nix
index b3b9635..c59e912 100644
--- a/nix/home/hyprland/hyprland-execution.nix
+++ b/nix/home/hyprland/hyprland-execution.nix
@@ -40,6 +40,7 @@
     exec = ~/.dotfiles/apps/hyprland/centre_app.sh --class "scratchbox" --title "Alacritty"
     exec = ~/.dotfiles/apps/hyprland/centre_app.sh --class "blueman-manager" --title "Bluetooth Devices"
     exec = ~/.dotfiles/apps/hyprland/centre_app.sh --class "com.gabm.satty" --title "satty"
+    exec = ~/.dotfiles/apps/hyprland/centre_app.sh --class "dev.deedles.Trayscale" --title "Trayscale"
 
     # start default apps
     exec-once = [workspace 1 silent] bitwarden
diff --git a/nix/home/hyprland/hyprland-window_rules.nix b/nix/home/hyprland/hyprland-window_rules.nix
index 9fffa6c..a1b37ee 100644
--- a/nix/home/hyprland/hyprland-window_rules.nix
+++ b/nix/home/hyprland/hyprland-window_rules.nix
@@ -68,6 +68,11 @@
     windowrulev2 = size 1000 800, class:(solaar), title:(solaar)
     windowrulev2 = move center, class:(solaar), title:(solaar)
 
+    # trayscale
+    windowrulev2 = float, class:(dev.deedles.Trayscale), title:(Trayscale)
+    windowrulev2 = size 1000 800, class:(dev.deedles.Trayscale), title:(Trayscale)
+    windowrulev2 = move center, class:(dev.deedles.Trayscale), title:(Trayscale)
+
     # volume control
     windowrulev2 = float, title:(Volume Control)
     windowrulev2 = size 1000 800, title:(Volume Control)