new color generation for matches

[Kr0nox]

This PR changes the color generation for matches.
Instead of distributing the colors across the hue spectrum, now there is a set of 7 (handpicked) colors from which each match is colored.
The algortihm for choosing colors: First all matches get sorted 3 times. (By line number in first and second submission and by number of tokens). It then runs through the list of matches and chooses the first color it can find that is not neigboring this match in any of the three lists. To avoid having only the first few colors or even only two alternating colors, we dont start with the first color when having found a fitting color but go on with the next in the list and go through the list cyclical.

[Kr0nox]

We should take a look at the list of colors in the next dev meeting

[Kr0nox]

The currently chosen colors

[sebinside]

The currently chosen colors

If you don't have a strong reason against it, I would opt for using the orange in the upper right corner instead of the red-like color in the second row, as it is still distinct but, well, less red.

[sebinside]

Works fine, the new colors look great with real data! I only have minor and easy to implement change requests, please see the comments above.

[Kr0nox]

If you don't have a strong reason against it, I would opt for using the orange in the upper right corner instead of the red-like color in the second row, as it is still distinct but, well, less red.

I changed it. Could you have a quick look to make sure the two oranges are not too similar @sebinside

[sebinside]

Oh, my mistake: I did not mean second row but second column. That's what happens if you review to many PRs at once, sorry! Please see the attached picture:

[sonarqubecloud]

[JPlag Report Viewer] Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[sebinside]

The colors look great, thank you!