How do you make a cursor effect like this?
I did not find an example. I drew it schematically.
There is a black and white background (img_01). Around the cursor there is an area (say, 250x250px), inside which a colored background is displayed (img_02). When you move the cursor, you get a kind of torch effect. Pictures are different , that is, CSS filters are indispensable.
You draw one picture on top of another, apply a mask to the top one. For this, svg or canvas is suitable
To place the code, please use CodePen or similar tool. Thanks you!