This PR introduces the possibility to hide the taskbar application icon.

Options:

• 0 → The icon will be hidden in the taskbar.
• 1 → default - The icon will be shown on the taskbar.

Test code:

from kivy.config import Config
Config.set("graphics", "show_taskbar_icon", 0)

from kivy.app import App
from kivy.uix.button import Button


class TestApp(App):

    def build(self):
        return Button(text="Hello World")

if __name__ == "__main__":
    TestApp().run()

Maintainer merge checklist

• Title is descriptive/clear for inclusion in release notes.
• Applied a Component: xxx label.
• Applied the api-deprecation or api-break label.
• Applied the release-highlight label to be highlighted in release notes.
• Added to the milestone version it was merged into.
• Unittests are included in PR.
• Properly documented, including versionadded, versionchanged as needed.