Have you checked the Images property, as Ken proposed ?
Zitat:
TBindNavButtons has a property Images that is an ImageList of images to use for the buttons. I don't know if that helps, but the documentation is here. –
Ken White Jan 3 at 3:39
By editing custom styles you are going to change the look-and-feel of the component itself,
do you really want to do that ?
Maybe different PremiumStyles from FMX already comes close to what you want ?
https://tp.embarcadero.com/category/styles/
https://www.embarcadero.com/de/produ...premium-styles