Figure $2$: The canvas getting lighter as more lightbulbs are turned on

Note that when all the lightbulbs are off, the entire canvas is black $($black circles on a black background$),$ so clicking on a lightbulb is slightly tricky. This is intentionally a little bit like fumbling around in the dark to turn on a light$-$switch when you can't see anything!

You are welcome to add other objects to the scene $($a cookie, or maybe a cookie jar$)$ so long as the above requirements are satisfied and these other items also get lighter$/$darker as lightbulbs are turned on$/$off$.$

Clicking on a lightbulb

An important subpart of this problem is determining whether the user has clicked a lightbulb. This will require determining whether a given point $($the location of a mouse click$)$ is inside a circle or not. You can $($and should$)$ re$-$use your answer to the previous question $($the inside$\_$circle$()$ function$)$ to help you do this.