Blank or Transparent Achievement Icon?

[Mr. Tact]

So, I noticed there are Achievement icons in some games which are letters. Allowing a short message in an Achievement Showcase. But in order to get proper spacing it seems I'm going to need a blank or transparent achievement icon. Anyone know where I can get such a beast?

[PurpleCreativeValiant]

https://store.steampowered.com/app/710780/Sky_Jump/
neon_blank

https://store.steampowered.com/app/582550/Passpartout_The_Starving_Artist/
Piece de Blanque

https://store.steampowered.com/app/776960/Mouse_Sneaking/
ꃳ꒒ꋬꋊꀘ

[Mr. Tact]

Thanks. The "Steam Dark Grey" in Sky Jump worked well.

[PurpleCreativeValiant]