Helpful Info about mods on the 25TH Anniversary Update: The debug error you may be able to see is an engineside problem. This is up to Valve to fix, which hopefully they will [and when they push an updated SDK]. You can test the new "WON" UI skin in your mod by copying the client, GameUI & hl DLLs from the valve folder to your mod folder. Thankfully, HL still uses VGUI with some new features -- You will need to update your GameMenu.res file to add new "HelpText" strings to your menu listings, and you will need to copy the trackerscheme.res file from the valve resource folder to your mod's resource folder and change the colours & fonts to your liking. You will notice that there are new colour strings for glow effects et al. There's now a video intro system which will play a defined WEBM file in media\StartupVids.txt alongside sound\UI\valve_sound.wav -- you can replace the WEBM and sound file to whatever you want in your mod. Users can skip with the spacebar or enter key. Keep in mind that GS sounds must be mono, WAV and 22050Hz or lower. As for VGUI window elements such as the server browser and options screen, these are mostly the same. If your mod isn't complicated enough to have custom DLL code, you can keep the Valve DLLs. Otherwise, I'm waiting with you eagerly for Valve to push their updated SDK.
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