Here’s an idea to ponder: lighting effects – how about a program to calculate light energy/ambient intensity (you may have heard of terms like candles or lumens) Here’s some practical info for motivation (but you may wish to search sites as Wikipedia, HowStuffWorks.com, KhanAcademy.org, CrashCourse.com or some others): Psychology of Lighting Best Light Bulb Options by Rooms in the House – Batteries Bulbs BlogSpot – https://www.pinterest.com/pin/359865826448245870/ or https://www.pinterest.com/pin/359865826448245870/ (blog.batteriesplus.com link there) http://blog.batteriesplus.com/2014/psychology-of-lighting (direct link)