If you go to TSVB and create enough new series, so you hit the bottom of your screen and trying to open the color picker in the bottom most series (or any other way it will go outside the screen), you can actually not scroll the page further down to see all of the color picker and properly use it. If you're running on a system showing scrollbars in the browser, you'll also see that there seem to be two layers of scrolling, but the wrong layer will get the scroll:

Expected behavior: we should be able to scroll down to see all of the color picker to actually use it.

Blocking issue: elastic/eui#2629