how to custom style line numbering

[CouldBeThis]

Hi, I would like to make the line numbering at the left side take up less space. Was hoping to do this via the gtk.css. How to determine the appropriate class/IDs? Is there a list somewhere, or a file that contains them that I can look through?

If relevant, I am also using the bookmarks feature and the plugin that highlights git changes. Ideally all these will be squished together in a small amount of space.

thanks for any hint

[elextr]

The line number margin is drawn as part of the Scintilla editing widget, its not a GTK widget so its not controllable from CSS, its controllable the same way the highlighting styles are set, see margin_line_number in filetypes.common. Note that all you can control is foreground/background colour and bold/italic/normal, so its probably not going to help you save space.

[CouldBeThis]

Ah I see thanks for explaining.