Doesn't work here ... Bewertet mit 3 von 5 Sternen

Couldn't get it to appear on about:newtab. Firefox is 16.01 under XP-SP3.
Cannot rate 1 because of parameters, cannot rate 5 because of failure.
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EDIT for version 0.0.2 in sandbox : still doesn't work. Also, there ere no default colors as stated here above in the presentation pics, Only #HEXVALUHERE (if that may have any link, not as a problem by itself of course)
I'm insisting because I'm looking forwards to using this add-on...

Diese Bewertung wurde für eine vorherige Version des Add-ons (0.0.1) abgegeben. 

Fixed

Thanks! I'll try to fix this. Right now it just says "#HEXHERE" if the user has not set the preferences. Try putting "#000000" for the background colour field and "#FFFFFF" for the text colour field, saving it, and then pressing OK.

Edit for version 0.0.5 & 0.1.0: It should be fixed; I had previously put the "defaults" folder in the wrong place...