Use arrow keys to control the target's position. Left/right will change the direction, up/down will change the distance. The "fern" grows towards the target.
(This project started out as something else entirely XD) Do Note: If anyone remixes this project, the color effect for sprites and the pen hue (aka the color slider) AREN'T an 1-to-1 relation. If both values start out as 0 and you increase the pen hue by 1, you would need the increase the color effect of a sprite by 2.