MovieGallery Icon    Preferences > Appearance
 

Playlists Text Size: Choose between small and large text size for Library and all your playlists.

List View Text Size: Choose between small and large text size when you are in the list view mode.

Window Theme: Aqua is default. Try out Textured or create your own color. Just remember it takes a restart to implement the changes.

Thumb Background Color: Choose what color you want for the thumbnail view background. White is default.

Thumb Border: Outline or shadow, it's your choice.

Movie Background Color: Choose the color accompanying the movie in the movie view. White is default.