No, VGUI is not HTML.
Here's a fun one. Start Steam with `-dev` and hit F7. Widget factory VGUI edition!
Oh also, https://developer.valvesoftware.com/wiki/VGUI_Documentation
Here's a fun one. Start Steam with `-dev` and hit F7. Widget factory VGUI edition!
Oh also, https://developer.valvesoftware.com/wiki/VGUI_Documentation
Valve used a very ubscure/niche HTML render engine initially for Steam (2006). The company/website behind that isn't online anymore. An older version of the Wiki had some brief info, but all these info vanished.
Here's an old revision from 2005 by a Valve employee confirming Steam used VGUI back then.
https://developer.valvesoftware.com/w/index.php?title=VGUI_D...
search for HTML: http://www.plastic-warfare.com/SteamUIGray.zip
Funny how the old things stay online. Notice also the cyber cafés menu entry. http://www.steampowered.com/status/game_stats.html