How to remove the icon from the header?

[kostrykin]

I can't figure out how to remove the icon from the header.

I tried Header(icon = '') which makes it invisible, but it is still highlighted when hovered with the mouse cursor.

[kbernhagen]

I believe you need to disable the command palette.

https://textual.textualize.io/guide/command_palette/#disabling-the-command-palette

[TomJGooding]

Disabling the command palette will still show the icon and highlighted when hovered though.

[TomJGooding]

The Header doesn't provide an option to remove the icon, but you could do something like this:

from textual.app import App, ComposeResult
from textual.widgets import Header


class ExampleApp(App):
    def compose(self) -> ComposeResult:
        yield Header()

    def on_mount(self) -> None:
        self.query_one("HeaderIcon").visible = False


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

Or hide it using CSS like this:

    HeaderIcon {
        visibility: hidden;
    }

[willmcgugan]

Untested, but this CSS should hide the icon:

HeaderIcon {
    display: none;
}