View Source ExTDLib.Object.ProfileAccentColors (ExTDLib v0.0.4)

Contains information about supported accent colors for user profile photo background in RGB format.

NameTypeDescription
palette_colorsnumberThe list of 1-2 colors in RGB format, describing the colors, as expected to be shown in the color palette settings.
background_colorsnumberThe list of 1-2 colors in RGB format, describing the colors, as expected to be used for the profile photo background.
story_colorsnumberThe list of 2 colors in RGB format, describing the colors of the gradient to be used for the unread active story indicator around profile photo.

More details on telegram's documentation.