Excellent Interactive Cursor Test
Simple and provides Light and Dark Backgrounds
from 
Stardock Forums
Stardock Forums
I have found an excellent Cursor Test page. It's simple and provides both light and dark backgrounds.
If you wan to see all the states of your cursor, or test a cursor you're working on, give it a try. I have provided the link below.
LIGHT
DARK
NOTE: The owner of this GitHub page, Vibhor Jaiswal, is a Software Engineer with 36 additional Repositories and has been active on GitHub since 2020.
WinCustomize Forums
Great find!!!