To make the cursor visible at the starting location but at movement onset the cursor disappears (turns transparent) and then reappears at movement end. In addition, we are trying to make the cursor, after the end of movement, passively move to the actual target location while maintaining a transparent cursor. The way we are doing now is changing the color of cursor black to match the background so that it is not visible and then changing it back to the cursor colour (green) at the end of movement. When we passively move the cursor to the actual target location we see the black cursor, which we do not want to see.