Funktionsweise ok aber Umsetzung verbesserungswürdig / Functionality okay but implementation needs to be improved Rated 3 out of 5 stars

Die Funktion des Add-ons ist ausreichend, aber v.a. das Design sollte verbessert werden. Hier ein paar Punkte dazu:
- Warum ein schwarzes Design?
- Es sind Scrollbars an den Seiten!
- Bei Mouseover werden verschieden Farben angezeigt. Was soll das bedeuten?

The function of the add-on is enough, but primarily the design should be improved. Here some points about that:
- Why a black design?
- There are scrollbars at the borders!
- At mouseover there are displayed different colours. What should it mean?

This review is for a previous version of the add-on (2.1.1-signed.1-signed). 

Explaination

First off, thank you using this add-on.

Secondly, I would like to answer your questions:
1) I just felt that the black design was clean and simple.
2) It has come to my attention after I released the add-on, that depending on the resolution of the screen, there may be scroll bars on either side of the window.
3) These colours have no meaning. They are the different colours from the Windows logo and were added in no particular order. I just added them in to increase the appearance.

Finally, I would just like to say that since Mozilla removed the add-on maker that I used, it will be harder for me to update the project. I will try to learn, however, I am limited on the amount of time that I have for doing this, so it could be a while.