Board Thread:The Quarters - Q & A/@comment-109.172.192.78-20180728082239/@comment-25085701-20180801202146

Ah, that's a deeper mechanical thing.

A habit is either + only, - only, or +/- when you create it. A + habit can only be positively clicked, a - negatively clicked. Every day, + and - only habits go back towards yellow, because every day you don't do that habit, it gives less gold / does less damage, whereas if you keep doing those things, it increases the color (more blue for + or more red for -).

A +/-  (both buttons) habit keeps its color and doesn't decay towards yellow every day. So I have some that are permanently blue because I've done them consistently well instead of missing.