Changes accent color and background custom emoji of a channel chat. Requires can_change_info administrator right
| chat_id |
Chat identifier |
| accent_color_id |
Identifier of the accent color to use. The chat must have at least accentColor.min_channel_chat_boost_level boost level to pass the corresponding color |
| background_custom_emoji_id |
Identifier of a custom emoji to be shown on the reply header and link preview background; 0 if none. Use chatBoostLevelFeatures.can_set_background_custom_emoji to check whether a custom emoji can be set |