You can add a theme to your widget. You can showcase some examples
For this example, we will choose the "Houses 15" theme:
After selecting the theme, click on "Show color scheme" to
display the available options.
You can set the different colors, according to the selected theme.
Notice that only some colors will be applied to certain elements,
depending on the selected theme. Once you're happy with your selection,
click on "Save Color Scheme".