I'd like the text in Geany's tabs a little larger.

All I can manage is to increase the text size of the tab I'm currently editing:

# document status colors
style "geany-document-status-changed-style" {
fg[NORMAL] = "#00FF00"
fg[ACTIVE] = "#FF0000"
font_name = "Comic Sans MS 14"
widget "*.geany-document-status-changed" style "geany-document-status-changed-style"

I went through geany.gtkrc for hints but couldn't see any that related to all tabs.

Is this something I may have to do in my gtk2 theme's gtkrc instead?