How do I send colored text using a bot?

[Takanashi-Rika]

I tried using the following code to send a colored message:

class MatrixInformer:
    def __init__(
            self,
            user_name: str = "***********",
            password: str = "***********",
            hostname: str = "***********",
            port: str = "***********",
            room_id: str = "***********"
    ):
        self.__url = f"matrixs://{user_name}:{password}@{hostname}:{port}/!{room_id}"
        self.__apprise_obj = apprise.Apprise()
        self.__apprise_obj.add(self.__url)
    def send_message(
            self,
            body,
            title="",
            notify_type=NotifyType.INFO,
            #body_format=None,
            body_format=NotifyFormat.HTML,
            tag="all",
            attach=None,
            interpret_escapes=None
    ):
        self.__apprise_obj.notify(
            body=body,
            title=title,
            notify_type=notify_type,
            body_format=body_format,
            tag=tag,
            attach=attach,
            interpret_escapes=interpret_escapes
        )
    def get_url(self) -> str:
        return self.__url
if __name__ == "__main__":
    notify = MatrixInformer()
    notify.send_message('<font color="blue">Info</font>')

However, from the results, it seems that it accepted the HTML format, but didn't render it.