3D View background colour in Ortho & Perspective mode

I’ve installed 2.8 recently and I’m just trying to get used to it. I’ve noticed that when in Top Orthographic
view both Wireframe and Solid display modes have the same background colour however LookDev and Rendered share a slightly darker viewport background. Also, when changing from ortho to perspective in all display modes, the background becomes darker. Is there anyway to keep a single background colour in both Ortho & perspective and all shading modes as I find the constant slight colour change triggering my OCD :woozy_face:

I checked 2.79 and it doesn’t have this behaviour.

Found the issue, its when grid subdivisions are set to 1 which it seems is no longer necessary to make the grid disappear.