Should individual alternate costumes’ artwork be protected as well
I don’t see any reason why not to protect those images. Basically, protect all alternate costumes like the stock icons are. If not, just Alph, the Kooplaings, genderswaps, and costumes such as Buff Ike or Pikachu Libre are fine. Lou Cena (talk) 19:43, 5 February 2019 (EST)
Outdated pages
/Official art is missing SSBU 9.0.0 addition (Steve).
/Extracted files#Costume colours is missing SSBU 6.0.0 and 9.0.0 additions (Terry and Steve's colours).
/Extracted files#Head icons is missing SSBU 5.0.0, 6.0.0, 7.0.0 and 9.0.0 additions (Banjo & Kazooie, Terry, Byleth and Steve's stock icons).
/Wiki icons is missing SSBU 9.0.0 additions (Steve's character icon, Minecraft series symbol).
All of the missing images exist, so there's no good reason to not have them updated by now. I'm not an admin so I can't do it. Sincerely, Samuel the Banjo-Kazooie Boss. 
15:37, November 3, 2020 (EST)
- And now, obviously, /Extracted files#Costume colours, /Extracted files#Head icons and /Wiki icons will all be missing 10.0.0 additions (Sephiroth's colours, stock icons and character icon) as soon as they're uploaded. Sincerely, Samuel the BANjO-KAZOOiE Boss.
13:40, December 14, 2020 (EST)