-extern int clearnotify; // set to 0 whenever notify text is drawn
-extern qboolean scr_disabled_for_loading;
-extern qboolean scr_skipupdate;
+extern cvar_t scr_conspeed;
+extern cvar_t scr_conalpha;
+extern cvar_t scr_conbrightness;
+extern cvar_t r_letterbox;