The Styles Tab manages collections of visual properties that are shared across elements in the app. Styles make it easy to maintain and modify a consistent visual identity. Rather than setting the font, background, and border for each element, define a style and apply it to all the elements of a given type. Bubble includes some built-in themes to help you get started. Use these to completely restyle the app. We integrate some popular themes from across the web, such as Bootstrap and Material Design.
For more information to get started, see the "Using Styles" article.