How to apply a ThemeGalaxy theme
When you installed the themeGalaxy app to your phone, another icon called "Themes" appears too. Click on that icon.
Shared: the themes you can import to your phone
Top 50: I assume is the 50 themes with the most views
Fonts: Fonts you can install
Submit: Here is where you can submit your own theme that you made
Select the theme you want and view the screenshots. If you decide you want it, click import at the very top. It will import into your themeGalaxy app. All the color coding will import over. You can leave as is or modify if you want. You will then need to name the theme, select icons, font, wallpaper, etc. and then build theme which will show up in your Samsung Theme Store. Some themers will include their walls (I always will) and some will upload the icon packs.