Bear Power recolor options

Imported from legacy Flarum.
Original author: paulakat01 (Flarum #1624)

Description:
Options for recoloring item #20596 (C. Bear Back) to light brown (the same muted beige as in item #480524), and pastels including light pink?

Why is this a good idea?
Players who want cute items frequently have lighter/brighter characters. The default dark color might not fit players who want this cute teddy bear.

What risks or downsides does it have?
Not much.

<3

Imported from legacy Flarum.
Original author: AinTz (Flarum #701)

@paulakat01

Implemented