Your question is wrong, DUI is not a direct method to render on things, It requires tools like scaleform.
Scaleform can be used with DUI to render like this, Any Form of rendering that requires a texture can be used with DUI, So yes. It is most probably using DUI . however the method of rendering the DUI cannot be determined until we see the code. My best bet is Replace texture using a flat dummy object. with surface.
i could make it in a scaleform so easy it would take me 1 hour to complete with options like adding as many bars and texts… with custom fonts support… colors… bg… textures… whatever… but i’m not here to flex… … i’m here to say imho it’s DUI
Yea DUI is nice once you know how to manage it and utilize it.
The only downside to DUI is the fact that each instance is basically like a chromium tab, And they use alot of ram