0 slightly dark because something blocks direct light from the sun:
1 including many subtle (= not obvious) and slight differences, in a way that is skilful:
Her playing is subtle and beautifully shaded.
1.3 percentage points is accounted for by changes in GDP growth (the dark blue shaded area).
Delicately shaded performances complement the thrilling, suspenseful narrative.
The composer drew beautifully shaded playing from the ensemble.
It's hard to be negative about a movie so subtly shaded and well-acted.