What does the bar mean?
On my main page I used progress bars to highlight my skills in working with software tools. I think it is important to further clarify this, because you might think my name is Linus Torvalds and not Henke, if you see a full bar at any technology.

Tools with this level of confidence are tools I feel most comfortable with.
I can use it to accomplish some complexity and have knowledge of advanced features
of the tool.

I have used the tool quite often, and am confident in using it. I know some
of the deeper tricks within this tool and my work starts to look better and
is not just usable.

I have done some little projects with this tool and feel comfortable
enough to work independently with it. The work is not very pretty, but
usable

I have messed around with the tool a little, maybe had a lecture
where it was used. I can realize some tasks, but it is not pretty
and I still have to use a lot of documentation.

I have done very little with this technology, and can only work with heavy
use of documentation and can't accomplish great complexity.