Board Thread:General Discussion/@comment-2604:6000:86C5:700:5919:4368:5202:5AB7-20170901003118/@comment-4939977-20170901130305

As Powerup777 said:
 * White = The R$ upgrade you take before you spend on the next upgrade
 * Red = The upgrade you take that must be bought with
 * Green = The R$ upgrade you take after you spend on the previous upgrade