Poll color calculation is wrong

[s0lst1ce]

Describe the bug
The poll color should give a quick view of the opinion of the community. For this a mix of 2 colors is meant to be used: red and green. However the color balancer algorithm adds blue to the mix which renders weirdly and requires one to learn the usual colors. This completely beats the purpose.

Steps to reproduce
Make a poll and add some reactions to it. The issue is particularly visible from 6 reactions (a ratio of at least 6). The color you will see will clearly be blue. This however becomes normal again with higher ratio.

Expected behavior
The poll color should only be made of red and green.

Screenshots

[s0lst1ce]

fixed with 4ea6837