Every now and then, WebStorm's UI starts to blink. It's quite hard to articulate the problem, so I have attached a gif that shows what I mean. I tried to search this community for similar reports, but I didn't find any.
I'd be happy to provide any additional information.
Build #WS-171.4073.40, built on April 11, 2017
JRE: 1.8.0_112-release-736-b16 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.12.4