For example, it's always an "eye, hand, walking person, etc", how do I change it from that whenever I'm in the main menu?
You go to Sprite Editor and overwrite them with the new image.
So if you want a new image for the eye, you make one about the same size, import over it, and bam! you have a new "Eye".
Hope that helps.
i don't think that would work, because ags won't let you delete or overwrite an sprite if it's beiing used.
go to sprite manager, import the images you want, go to gui, change the images you want to change, then delete the old ones.
You can still overwrite the gui type icons, i've done it multiple times.
When turning the menu on:
mouse.UseModeGraphic(eModePointer);
When turning the menu off:
mouse.UseDefaultGraphic();