Calendar
Each calendar day is shaded by how much alcohol you logged that day. The bands are fixed, so the same amount always looks the same — the shading never rescales to the month.
0 standard drinks
No alcohol logged — including days you marked dry
up to 1 standard drink
A little
1 – 2.5 standard drinks
Moderate
2.5 – 4 standard drinks
More than moderate
4 – 5.5 standard drinks
High
5.5 standard drinks or more
Highest band
unknown
Lost track — don't remember or stopped counting
Your definition
United States — one standard drink is 14 g of pure ethanol. Change this in Settings and these numbers follow.
Setting your own thresholds and colors is planned for a later update.