Want to Change Layout

Basically, it can be completed just by editing Prefabs.
I recommend creating PrefabVariants of “each type’s Prefab” or “DynamicThumbnailPlaylist_Base” before editing, rather than modifying existing ones.

Want to change the number of videos displayed per page

Please change the red frame area in the image.

Want to change each video’s Prefab

Create a Variant of “VideoElementUI” and make it your preferred layout.
Then, place the created Prefab in the red frame area on the left side of the image, then drag & drop it to the red frame on the right side.

Want to change colors

From v1.2.0, a color variation feature was added, making it easy to do.
For details, see here.