By interacting with the computer in Sometsuki's room, you can change your menu theme (called "Window Type" in-game) into 12 (citation needed) different types.
This page serves as a guide of what menu themes are available throughout the game, how and where they are unlocked.
| Theme | Location | Conditions | Image | In-game |
|---|---|---|---|---|
 |
Sometsuki's Room | Obtained at the beginning of the game |     | |
 | ||||
 | ||||
 | ||||
 |
Snow World | Obtained by interacting with a twin-tailed girl in Snow World. |  |
 |
| Countryside | Obtained by interacting with a person wearing a sunhat in Countryside. |  | ||
 |
Vast Plains | Obtained by interacting with the lone Dessert-Folk at the left of the plains. |  |
 |
 |
Floating Library | Obtained by interacting with the center of the magic circle after lighting up all candles found in the library. |  |
 |
 |
Liminal Building | Obtained by dismissing the Take Off flight event. |  |
 |
 |
FC Fields | Obtained by entering FC Fields for the first time. |  | |
 |
FC Fields | Obtained by opening the chest in the last room at the top floor of the largest building in FC Fields. |  |
 |
 |
Schoolgirl's Room | Obtained by sleeping with the Schoolgirl's bed. |  |
 |