Retrieves the current account's brand colors for the Wistia desktop
app's background picker.

colors lists solid colors: every brand kit's color tokens (the colors
the web editor offers as "Brand colors"), then each brand's primary and
page background color when it is solid, default brand first. Values are
six-digit hex strings, and a repeated color is listed once. Tokens whose
value isn't a hex color are left out. An account without a brand kit
gets its player color in place of the kit, which is what its default
brand kit would hold.

brand_gradients lists each brand's primary and page background color
that is set to a gradient, as color stops sorted by position, default
brand first. Stops whose color isn't a hex color are left out, and a
gradient with fewer than two hex stops left isn't listed.

Requires api token with one of the following permissions

(any scope allowed)

Tokens with the "Act with a team member's permissions" permission
(all:delegate_to_contact_permissions scope) can also be used. Requests
made with such a token are authorized using the permissions of the
contact assigned to the token.