How to create custom cursor?

I searched all over but cannot find anz info about custom cursor icons.

What format it should be?

What resolution?

How to set transparency?

PNG works. use photoshop to work with "transparent background", erase to transparent or just load in some icon from an icon pack and you will see the transparency there already. when you save out png keep transparency option on save, which is a given with PNG formats.
in photoshop think "layers" as layers are not on background. i donno, but loading in a png icon or something makes it more intuitive.
when making "new" see the option in photoshop for background to be transparent.

about 32-40pixels is small about 50-64 pixels is medium about 100pixels is huge (when in 800x480), but it is probably very dependant on screen resolution.

Thanks, I found out that plain simple PNG does the job. I had to play a bit with resoultion to see what fits well. I decided to stay with 64x64 pixels.

Here are some cursors I made https://oruxmaps.forumotion.com/t1016-download-some-custiom-cursors-for-orux-maps