I'm using the vinyl theme by baliclem and would like to report an issue. my monitor settings are 4K x 2K 3840 x 2160. The vinyl theme doesn't apply the theme color to the top left corner of my firefox browser. The back arrow button still functions but is almost invisible. I'm assuming the theme isn't designed to stretch across the entire browser frame. I've corrected the issue by reducing my monitor dimensions. Is there another way to stretch the theme so the toolbar color is consistent across the top of my browser window?