Prism Island

Prism Island is the main setting of the game Paper Mario: Color Splash. The island is first found drained of half its colors. Mario, Princess Peach and Toad came here to solve a mystery about a colorless Toad, after noticing that the stamp on him is the same on the Prism Island map in Mario's House.

On the island is a Bowser Tape, implying that Bowser is responsible for the colors now gone. This was later confirmed on the September 13 episode of Nintendo Life, with it also revealing that Bowser had been covered by black paint and intended to share the dark gift of it (although Princess Peach in her message to Mario upon being kidnapped implied that Bowser was not himself).

Locations

 * Port Prisma
 * Blue district
 * Red district
 * Yellow district
 * Harbor district

Red

 * Ruddy Road
 * Cherry Lake
 * Redpepper Volcano
 * Redpepper Crater
 * The Crimson Tower

Orange

 * Kiwano Temple
 * Marmalade Valley
 * Toad Trainworks
 * Tangerino Grill
 * Sunset Express

Yellow

 * Daffodil Peak
 * Sunglow Ridge
 * Mustard Café
 * Château Chanterelle
 * The Golden Coliseum

Green

 * Mondo Woods
 * Sacred Forest
 * Green Energy Plant
 * Mossrock Theater
 * The Emerald Circus

Blue

 * Indigo Underground
 * Bloo Bay Beach
 * Dark Bloo Inn
 * Cobalt Base
 * Fort Cobalt

Violet

 * Violet Passage
 * Plum Park
 * Lighthouse Island
 * Vortex Island
 * Fortune Island

Other

 * Black Bowser's Castle
 * Roshambo Temples
 * Roshambo Temple #1
 * Roshambo Temple #2
 * Roshambo Temple #3
 * Roshambo Temple #4
 * Roshambo Temple #5
 * Roshambo Temple #6
 * Roshambo Temple #7
 * Roshambo Temple #8

Entertainment
Toads celebrate a day called "Oceanfest", where they participate at multiple games to win a key as the first prize, allowing the winner to enjoy the beach.

Trivia

 * With each Big Paint Star recovered, the map's theme adds more instruments as well as going up a half step in pitch.
 * The island is shaped like a giant paint brush.
 * The color arrangement is arranged in a palette formation.