The color picker tool sizes itself to the minimum size need to contain the content in each tab, but that is so narrow that it makes it a pain to use if I want to select different modes of color picking. I am forced to use the tiny left and right arrows to make the name of the tab I want visible before I can even click on it.
We have an open feature request to expand the picker a bit and make it easier to interact with the other tabs. No ETA on when it might make it into the application, but we’re aware that this can be frustrating.