System Information
Operating system: Darwin-18.6.0-x86_64-i386-64bit 64 Bits (OS X 10.14.5)
Graphics card: Intel HD Graphics 4000 OpenGL Engine Intel Inc. 4.1 INTEL-12.9.22
Blender Version
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-04 22:32, hash: rBe80cbdac331a
Worked: (optional)
Menu and Splash screen transparent. Preferences menu artifacts.
When Blender opens, the Splash screen appears transparent and the same happens with Menu. I tried to check preferences but I found some strange artifacts like strange lines from left bottom corner to where a checked box should be.
I uploaded three screenshots showing the problem.




