diff --git a/sources/tmux/.tmux.conf b/sources/tmux/.tmux.conf
index 23cd8e5..b21e3f3 100644
--- a/sources/tmux/.tmux.conf
+++ b/sources/tmux/.tmux.conf
@@ -51,6 +51,9 @@ unbind '"'
 # Unbinding the old keybind for splitting the pane horizontally
 unbind %
 
+# Custom popup for system monitoring
+bind-key m display-popup -w 85% -h 85% -E "bpytop"
+
 # Disable completely the mouse
 set -g mouse off
 
@@ -68,7 +71,7 @@ set-option -g focus-events on
 
 # Terminal feature specific to Neovim
 set-option -sa terminal-overrides ',tmux-256color:Tc'
-set-option -as terminal-features ',xterm-kitty:RGB'
+set-option -as terminal-features ',*:RGB'
 set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'  # undercurl support
 set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'  # underscore colours - needs tmux-3.0