Repository: Textualize/textual
File: src/textual/dom.py (Python)

Code before:
            else:
                text_background = background
            if has_rule("color"):
                color = styles.color
            style += styles.text_style
            if has_rule("auto_color") and styles.auto_color:
                color = text_background.get_contrast_text(color.a)

        style += Style.from_color(
            (background + color).rich_color if (background.a or color.a) else None,
            background.rich_color if background.a else None,
        )
        return style

    def check_consume_key(self, key: str, character: str | None) -> bool:
        """Check if the widget may consume the given key.

        This should be implemented in widgets that handle [`Key`][textual.events.Key] events and
        stop propagation (such as Input and TextArea).

        Implementing this method will hide key bindings from the footer and key panel that would
        be *consumed* by the focused widget.

        Args:
            key: A key identifier.
            character: A character associated with they key, or `None` if there isn't one.

        Returns:
            `True` if the widget may capture the key in its `Key` event handler, or `False` if it won't.
        """
        return False

    def _get_title_style_information(
        self, background: Color
    ) -> tuple[Color, Color, Style]:
        """Get a Rich Style object for for titles.

        Args:
            background: The background color.

        Returns:
            A Rich style.
        """
        styles = self.styles
        if styles.auto_border_title_color:
            color = background.get_contrast_text(styles.border_title_color.a)
        else:
            color = styles.border_title_color
        return (
            color,
            styles.border_title_background,

Review comment (suggestion):
```suggestion
            character: A character associated with the key, or `None` if there isn't one.
```

Code after:
            else:
                text_background = background
            if has_rule("color"):
                color = styles.color
            style += styles.text_style
            if has_rule("auto_color") and styles.auto_color:
                color = text_background.get_contrast_text(color.a)

        style += Style.from_color(
            (background + color).rich_color if (background.a or color.a) else None,
            background.rich_color if background.a else None,
        )
        return style

    def check_consume_key(self, key: str, character: str | None) -> bool:
        """Check if the widget may consume the given key.

        This should be implemented in widgets that handle [`Key`][textual.events.Key] events and
        stop propagation (such as Input and TextArea).

        Implementing this method will hide key bindings from the footer and key panel that would
        be *consumed* by the focused widget.

        Args:
            key: A key identifier.
            character: A character associated with the key, or `None` if there isn't one.

        Returns:
            `True` if the widget may capture the key in its `Key` event handler, or `False` if it won't.
        """
        return False

    def _get_title_style_information(
        self, background: Color
    ) -> tuple[Color, Color, Style]:
        """Get a Rich Style object for for titles.

        Args:
            background: The background color.

        Returns:
            A Rich style.
        """
        styles = self.styles
        if styles.auto_border_title_color:
            color = background.get_contrast_text(styles.border_title_color.a)
        else:
            color = styles.border_title_color
        return (
            color,
            styles.border_title_background,