+ Window *get_root_window() const;
+
+ void set_focused_frame_color(int r, int g, int b);
+ void get_focused_frame_color(int *r, int *g, int *b) const;
+
+ void set_unfocused_frame_color(int r, int g, int b);
+ void get_unfocused_frame_color(int *r, int *g, int *b) const;