[Visual Refresh] Add behindText vis color tokens#8253

mgadewoll merged 2 commits intoelastic:eui-theme/borealiselastic/eui:eui-theme/borealisfrom

mgadewoll:eui-theme/borealis-behind-text-tokensmgadewoll/eui:eui-theme/borealis-behind-text-tokensCopy head branch name to clipboard