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White simple loading bar

White simple loading bar, easy and clean

As u can see in the menu there's also a loading icon at left of "Add-on".
But it has to load addons first to make the icon be moddified

so u can put
X:\steam\steamapps\common\Left 4 Dead 2\left4dead2\addons\workshop\3289084627.vpk
to
X:\steam\steamapps\common\Left 4 Dead 2\left4dead2\addons

then the file will autoloaded before loading addons.