galaxia is inconsistent in the magnitude system #73
Description
The Galaxia SDSS isochrones are AB mag.
The Galaxia UBV isochrons are Vega mag.
SPISEA injects with Vega magnitudes.
Thankfully we mostly use UBV (which is Vega) so it is matched with SPISEA.
We should update the PopSyCLE and SPISEA documentation to say Vega magnitudes throughout. And "don't use the SDSS" isochrones.
I'm not STROEMGREN ones.