[1.0] Delay of applied styles

[micjamking]

https://www.facebook.com/articlesfordevelopers/photos/a.10151435123819601.1073741825.129712729600/10153616513964601/

Really nice extension. The one thing which is stopping me using it is that the styles are applied with some delay. So when you open DevTools you see the default UI for almost a second and then you get the cool stuff :)

[henrebotha]

I have it much worse. It takes minutes before the styles will load.