Luna UI provides classes to improve and customize styles of built-in components.
Custom components built from scratch.
To add custom components in UI Builder: Select "Project" in Library section > unfold CupkekGames > drag & drop any component to Hierarchy section.

For more details, refer to the individual component's page.
Settings
Theme
Light
Contrast
Material
Dark
Dim
Material Dark
System
Sidebar(Light & Contrast only)
Font Family
DM Sans
Wix
Inclusive Sans
AR One Sans
Direction