The addon your talking about is called zgoo:
http://www.esoui.com/downloads/info2...ctiontool.html
But you wont find them with that because the textures are set in xml. Textures set in xml code files do not show up with GetTextureFileName()
Lua Code:
-- ZO_PerformanceMeters background:
"EsoUI/Art/Performance/StatusMeterMunge.dds"
-- ZO_PerformanceMeters font:
font = "ZoFontWinT2"