TARDIS desktop theme
From Jenny Everywhere Wiki
In at least one universe, TARDISes had changeable desktop themes, altering the appearance of the pocket-dimensional control room. One was “Semple Black”, which plunged the room in impenetrable blackness interrupted only by a message asking visitors to confirm that they were not Anish Kapoor. (PROSE: How To Steal Timeships & To Influence Time Lords, Set Up to Blow Up)