I tweaked Purplefin's GrabMarker mod to make it more subtle. Uploaded with their permission.

I wanted it to be barely noticeable to maximize immersion.

• Removed center black square
• Decreased grab marker opacity from 0.8 to 0.6 (more transparent)

You can tweak the size and color by opening the archive in 7zip (do not unzip) and editing Interactor.gd, see pic for lines to edit. 7zip allows for the file to be edited and saved without extracting the file. I edit with Notepad++.