[7.x] [kbn/optimizer] only build specified themes (#70389)#70671

Merged

spalger merged 1 commit intoelastic:7.xfrom spalger:backport/7.x/pr-70389

Jul 3, 2020

+545-143

Commits on Jul 2, 2020

[kbn/optimizer] only build specified themes (elastic#70389 )

Spencer
authored and
spalger
committed