* Convert defaultColor from ImVec4 to Color_RGBA8.
Convert defaultColor's ints to floats when being applied to currentColor in the macro.
* Address previous cleanup comments.
Surround `Message` tab in an advanced check.
* Resolve warnings and cleanup whitespace/formatting.
* Make Color_RGBA8 constructing function because... platform differences...
* Function name clarification.
* Remove default color conversion, reference default colors directly in CosmeticOption initialization.