private Cursor getCopyCursor() {
		if (copyCursor == null) {
			copyCursor = createCursor(COPY_CURSOR_ID, COPY_NAME, new Point(0, 24));
		}
		return copyCursor;
	}
Set the cursor for drag under feedback.
@param c cursor for feedback; may be null if there is no feedback.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/programtree/TreeDragSrcAdapter.java