Fundamental is a EmulationStation theme targeted for use on the Raspberry Pi. The design is based on my BigBox theme by the same name (https://forums.launchbox-app.com/files/file/265-fundamental-theme/). This theme supports all the new features of EmulationStation that have been added into the RetroPie build (video snaps, themeable system carousel, etc.).
To customize the color scheme to your liking, open up colors.xml and change the values for the three theme variables:
- mainThemeColor changes the color of the sidebar, background, and underlay gradients
- titleTextColor changes the color of the title text on the system select screen and the text list highlight
- metaTextColor changes the color of the metadata text and text list text