White lines?

Hey there,

I’ve been trying to use VTFs rather than PNGs for my HUDs/scoreboards/menus etc and am new to using VTFEdit in general.
This is the layout of my VMT files:

	"$basetexture" "visioninterface/hud/ammo2"
        "$vertexalpha"    "1"
        "$vertexcolor"     "1"
        "$nolod"        "1"
        "$translucent"    "1"
        "$ignorez"        "1"

However it’s turning out to look like this (the ugly white outline around the blue icons):

I feel like I’m just being dumb but if anybody who is more experienced with VTFEdit let me know what I’m doing wrong?

Just use .png

Thanks for the fast response mate, I guess I’ll just use png for any of the icons that is having the white line icon. I was led to believe VTF was a lot more efficient.