Hud status bar questions.

[Grimsin]

Okay so i have been fiddling around and i can not for the life of me figure out how it is people get status bars that are not just straight. Like IceHud and DHUD. Someone point me in the right direction? I tried things like using setmask and simple setstatus bar textures with my status bar masks but they dont fill the way you would think... the texture appears to grow rather then "fill" the background texture.