Stop Solids turning Red

In the Model-Editor, Solids become red as you mouse-over them [default colour in Application-Settings > Graphics tab]

To stop this, filter for an element that is not in the Model-Editor. E.g. Filter for Points. Points are not in the Model-Editor, and thus Solids do not become red as you mouse-over them.

See Filters menu [Filters toolbar] > Filter Points.