displayio.Palette not checking color_count

[caternuson]

Can instantiate a Palette with a color_count that exceeds max (255?) without getting any errors. But then it errors out later.

Adafruit CircuitPython 4.0.0-beta.5 on 2019-03-17; Adafruit PyPortal with samd51j20
>>> from displayio import Palette
>>> p1 = Palette(255)
>>> p2 = Palette(256)
>>> p1[0] = 0xFF0000
>>> p2[0] = 0xFF0000
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: Palette index out of range
>>> 

[deshipu]

This is strange, because I don't see anything that would limit the size of the palette — uint32_t is used as the index type everywhere.

[deshipu]

Ah, I see, color_count is uint8_t in the displayio_palette_t struct.