Colons get replaced with blank blocks (TypeScript Angular)

[pazkahlon]

[Swiip]

Faced to the same issue. I looked deeper, it's precisely this css rule :

seti-syntax/styles/syntax.less

Line 236 in 157d1fe

background-color: @punctuation;

color & background-color are set on the same gray. I would suggest removing the background-color line and it seems to work but I don't know if it could create a regression.