Login Window CSS

[CraftyLion]

Where can I find the css file for the login window?

I'm using the Curve2 Colour Changer mod and changed the background colour of the theme to black. However, the Username and password prompt has now become unreadable because it's a dark grey by default ..

[TwitchisMental]

.popup_content is the class that you are looking for.

It can be found in the index.css on line 2833 for the default theme.