FYI For Themes When Using Rounded Corners & Vertical Tabs

[TooSpooky]

Hey,

Just thought I'd let anyone know if they're using a theme they like with vertical tabs and rounded corners, in order for the colors to sit flush you have to edit these lines in the theme with the correct color for the corners and tabs to fit with the rest of the window:

Frame
ntp_background

I modified the Tokyo Night theme that way here: https://addons.mozilla.org/en-US/firefox/addon/tokyo-night-floorp-edition/