Next Aesthetic for the band??

Now I recently noticed that Matty changed the color layout of his Twitter to gray and Its had me thinking how cool it would be for them to tackle that look for album 3. Yes, some of you may think it's too similar to their black and white days but I disagree. They could incorporate a light blue/gray aesthetic and it would look beautiful. That being said, the black/white era and the current one with the neon pink colors are so visually pleasing and I'm curious to know what the next color theme will be for them when promotion/release of album 3 approaches us.