* Maybe configure lights in separate json file, to allow reuse of consistent models in multiple levels?
* Allow going down to zero seeds by buying lights if a turnip is planted
* Maybe make the mould weaker at the start
-* Display average power usage in light tooltip
* Maybe also display information next to existing lights -- tooltip?
* Generally balance the levels better and add more levels
* Graphical level selection with screenshots
* Different prices for different lights
* Calculate both from # of colours, speed, beam width, etc.?
* added tooltips for lights
+* Display average power usage in light tooltip