This ol’ house is needing a new coat of paint.
New community icon: 256×256 px.
New banner: desktop (4000x128px) and mobile (1600x480px)
New colors: “base”, “highlight”, and background. Oddly, reddit suggests this last. IMHO color ties everything together and should come first.
New background image: maybe? IMHO I’m partial to less bandwidth blown on backgrounds when people are here for real content, but maybe the community will upvote something awesome.