Operating system: Linux-4.19.69-1-MANJARO-x86_64-with-arch-Manjaro-Linux 64 Bits
Graphics card: GeForce GTX 1660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.40
Broken: version: 2.80 (sub 75), branch: makepkg, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e
Short description of error
Color of header-bar of Graph and Drivers Editors is darker than that of the other editors. This looks a bit inconsistent.
I feel that the color should be lighter as in Timeline and other editors.
I'm using the default Blender Dark theme, and haven't changed any of the theme settings.
[Based on the default startup .blend file]