Ensures the default system-color CSS variables are present (see installSystemColorDefaults). Wired into SheetElement, so the grid themes from --sxl-sys-color-* out of the box.
SheetElement
--sxl-sys-color-*
Ensures the default system-color CSS variables are present (see installSystemColorDefaults). Wired into
SheetElement, so the grid themes from--sxl-sys-color-*out of the box.