Assuming you are using Tabbar , you can customize the fonts by running Mx customize-face
— you can either press Enter to configure them all, or use the completion tab to select one face.
The following faces are defined in tabbar.el:
- Tabbar button
- TabBar Highlight Button
- TabBar by default
- TabBar Highlight
- TabBar selected
- TabBar Separator
- TabBar-Unselected
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