UITextArea supports attributed or html text mode, but overwrites style in initial text

[eruvanos]

Request

UITextArea supports attributed or html text mode, but overwrites style in initial text.
We need a way to disable this behaviour.

System Info

arcade: dev

Code

import arcade
from arcade import View, open_window
from arcade.gui import UIAnchorLayout, UIManager, UITextArea


class MyView(View):
    def __init__(self):
        super().__init__()

        self.background_color = arcade.color.WHITE
        self.ui = UIManager()  # Setup UIManager
        root = self.ui.add(UIAnchorLayout())
        # UIAnchorLayout is especially useful for positioning UI elements within the center of the screen

        # add a text area with our start text
        ta = root.add(
            UITextArea(
                text="Initial text, using the UITextArea style properties. {color (255, 0, 0, 255)}This should be red{color (0, 0, 0, 255)}!",
                size_hint=(0.5, 0.5),
                document_mode="ATTRIBUTED",
                text_color=arcade.color.BLACK,
            )
        )
        # append some text to the text area, with different styles
        ta.doc.append_text("\n")
        ta.doc.append_text("This text will be added to the text area. \n")
        ta.doc.append_text(
            "Here it is easy to add some style attributes.\n", dict(color=arcade.color.RED)
        )
        ta.doc.append_text(
            "Here it is easy to add some style attributes.\n",
            dict(color=arcade.color.GREEN, underline=arcade.color.BLACK),
        )
        # Style attributes from: https://pyglet.readthedocs.io/en/latest/modules/text/document.html#style-attributes

    def on_show_view(self) -> None:
        self.ui.enable()

    def on_hide_view(self) -> None:
        self.ui.disable()

    def on_draw(self):
        self.clear()
        self.ui.draw()


if __name__ == "__main__":
    open_window(window_title="Minimal example", width=1280, height=720, resizable=True).show_view(
        MyView()
    )
    arcade.run()