You can do it with a couple of lines of shell script too, using the xcalib utility:<p><a href="https:&#x2F;&#x2F;gist.github.com&#x2F;hrj&#x2F;e9ed0d73d2daaa98b2d2" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;hrj&#x2F;e9ed0d73d2daaa98b2d2</a><p>Been using that for more than an year with great results.<p>I also have another version of it:
<a href="https:&#x2F;&#x2F;gist.github.com&#x2F;hrj&#x2F;6561271" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;hrj&#x2F;6561271</a><p>(this version cuts the green and blue equally)