:moon: Moon phase
Analysis
About moon_phase attribute in One Call API responses:
0 and 1 are 'new moon', 0.25 is 'first quarter moon', 0.5 is 'full moon' and 0.75 is 'last quarter moon'. The periods in between are called 'waxing crescent', 'waxing gibous', 'waning gibous', and 'waning crescent', respectively.
https://fr.wikipedia.org/wiki/Phase_de_la_Lune
Proposal
Provide 4 icons for new, first quarter, full and last quarter moon.
Since each day, moon_phase increase by >=0.02, one of those icon will be displayed in daily forecast viewer (See #16) for each of the forecast with moon_phase value with lowest distance to 0, 0.25, 0.5 and 0.75, that distance being <0.02.
What would be a good "new moon" icon??! May be a multi-line text is better than icons... But it implies translations...
Depending on the unit system choice there may be enough horizontal space left to display the icon or not. Must be checked to avoid overlapping mess.