This is a simple plugin to get some of the current system colors from Windows, like the current Accent color.
Hex - When Hex=1, color output is in hex form. Otherwise, the color output is comma-separated. Hex=0 is default.
DisplayType - This option will format the color space to an individual channel. Options include: Red, Green, Blue, Alpha, All (default), and RGB (same as "All", but minus the alpha channel).
ColorType - Type of color to retrieve from the system. Valid values include: Accent, WIN8, Aero, Desktop, Menu, Window, ButtonFace, TooltipBackground, and more. You can also get the "raw" DWM values.
When using ColorType=WIN8, I recommend DisplayType=RGB.
Note: For modern versions of Windows (10 or 11), the only real reliable color is ColorType=Accent, although in my testing the ColorType=WIN8 color (without the alpha channel) is still used to draw the border of windows in most cases.