**System Information**
Operating system: Windows-10-10.0.19042-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 496.76
**Blender Version**
Broken: version: 3.0.0, branch: SelectThrough (modified), commit date: 2021-12-15 12:21, hash: `rB6349dd43b17a`
Worked: 2.93 and earlier
**Short description of error**
Blender 3.0 has hardcoded modification of node editor background color when inside the node group. This makes it impossible for users to create aesthetically pleasing themes. For example, here is a minimalistic color setup intended to minimize the clutter:
{F12753280}
But entering the node group introduces ugly seams in the theme style:
{F12753282}
**Exact steps for others to reproduce the error**
1. Go to Theme Editor and adjust the Node Editor theme so that the Window Background color matches the Header color and the Region Background color
2. In node editor, create a node group and enter it
3. Attempt to fix the color discrepancy between the Node Editor background and surrounding UI elements
Result: The node editor group background has hardcoded color modification, making it impossible for users to specify theme aesthetic.
Expected: The node editor group background color modification is not hardcoded, and can be changed.