When you drag an item out of your inventory to drop it, whether into another inventory or on the ground or whatever, the item icon is placed on your cursor. This is very, very ugly, as its the direct icon from your inventory in a big black rectangle withbno borders. This could be improved by giving it borders, or better yet, giving icons transparent backgrounds so they are no longer enclosed in off-black rectangles.

For example, drag a tango out of your inventory and hold it on your cursor. Move that around the screen. It looks terrible. It could have a border, or make the back transparent via alpha channels so its just the tango itself on the cursor.