Consistent mat_monitorgamma convar flags Adjust formatting of VRAD usage info * Give more context to -SunSamplesAreaLight Fixed Menu Lua errors when creating presets * Due to recent changes to main menu internals Fixed crashes to do with a certain broken demo file Improve invalid model detection Make `gm_spawn` only work for .mdl files util.IsValidModel returns false if extension is not .mdl Better warning for "Unknown read error 38"