Recent changes made the 3D Cursor hard to see in some situations, according to user feedback. Roll-back most changes to bring back the old style and improve readability and contrast. * Keep the same size as the old cursor. * Keep the crosshair inside the circle. * Use red-white for the circle as before. See PR for details and screenshots. Pull Request: https://projects.blender.org/blender/blender/pulls/147404