Since I wasn't capable of extracting the textures, I can't garantee which file (or files) contains the hud elements, but I tried to explore "interface.vpp_pc>vdo_button_pc.str2_pc>vdo_button_pc.lua". At that point, I noticed that I needed to create a batch file to extract the textures inside the .lua file.
I think files containing words like "interface", "hud" are a good start point.
I think files containing words like "interface", "hud" are a good start point.