[Feature Request] Hide thumbnails and titles for unseen episodes

[sfkpmr]

Describe the solution you'd like A feature that replaces thumbnails for unseen episodes with some sort of generic Dim thumbnail, and either removes the titles, or renames them "Unseen".

Additional context Unseen episodes can often have thumbnails and titles that give away spoilers, such as a dead character appearing in a thumbnail giving away that they weren't really dead.