3 Arrays (len: N_LEDS) that contain the fading pre-multiplier for every led for each watch hand
:arrow_right: call function for each watch hand and pass the respecting array
go through all arrays and for each led sum up all the fading multipliers (0.9H+0.2M+0.4S = 1.5)
final color is: (0.9/1.5)H + (0.2/1.5)M + (0.4/1.5)S
connect flashing to error logging?