This is not a separate app, this is a plugin that needs #Hex app to be able to use it. You can customize your Samsung oneui (android pie) with beautiful dark theme and customized coloring option for app icon & customized system icon's.
A simple design with icons that have a surround like the rings of a planet.
Primary colour will fill app icons on home screen, weather widget, switches and settings icons and surrounded by accent, while box stroke colour will surround dialogs, pop ups, search fields, keyboard etc while slightly spaced then filled with box colour.
Theme for both light and dark themes for day/night mode