The Palette setting is where you can change your app’s color theme. To access this setting, open the Table Builder/Form Builder > THEME > Palette.
Light Mode/Dark Mode: This changes the background of your app to either light or dark.
Default color palette: When you select a color from the default palette, all elements are styled uniformly using the selected color. The contrast color is automatically assigned based on the chosen color.
Custom colors: The custom colors section requires a contrast color. This is the text color used on elements where the background color is set to the text color.