How to prevent RadioButton (that are dynamically mounted to RadioSet) from expansion animation on mouse click?

[learnbyexample]

Here's a sample program:

from textual.app import App
from textual.widgets import RadioButton, RadioSet

class TestApp(App):

    CSS = ''' Screen { align: center middle; } '''

    def __init__(self):
        super().__init__()
        self.rset = RadioSet()    
    
    def compose(self):
        yield RadioSet('apple', 'banana', 'cherry')
        yield self.rset

    def on_mount(self):
        self.dark = False
        rb1 = RadioButton('true')
        self.rset.mount(rb1)
        rb2 = RadioButton('false')
        self.rset.mount(rb2)

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

Here's a sample video when the above program is run:

rset.mp4

Is there a way to prevent the RadioButtons from animating in the second case (the RadioSet with true/false choices)?

For my actual use case, I need to dynamically add/remove existing RadioButtons from a RadioSet (the number of RadioButtons vary, need to show a pre-selected choice if applicable, change styling, etc - which is why I'm using mount).

[willmcgugan]

I didn't anticipate anyone adding a RadioButton to a RadioSet after it is mounted. That's probably easy to make that work, you might want to file an issue.

In the meantime, recreating the RadioSet with your new options is probably the way to go.

[learnbyexample]

I've opened an issue. I'll also try out your suggestion of recreating RadioSet.

[learnbyexample]

I experimented with recreating the RadioSet for my actual project and seems to work fine so far (I still have some scenarios to run through).

One major difference compared to mount is that the first option is soft-selected and underlined (apple in the screenshot below) - is there a way to prevent this behavior?

[learnbyexample]

I have a partial workaround by moving the focus away from the RadioSet to another widget. I'd prefer to be able to have focus on the RadioSet without the underline, but overall I'm satisfied with the option of recreating RadioSet instead of mounting RadioButtons.