howToExtendThemeClass.md

How to extend Themes::class

If you want to add theme methods you need to create your own class MyTheme or whatever name you want.

Let's say you want to add fire, lagoon, blink and alert themes

/**
 * @method fire(string $text)
 * @method lagoon(string $text)
 * @method blink(string $text)
 * @method alert(string $text)
 */
class MyThemes extends Themes
{
    // These strings are used as methods names
    public const FIRE = 'fire';
    public const LAGOON = 'lagoon';
    public const BLINK = 'blink';
    public const ALERT = 'alert';

    public const MY_STYLES = [
        // name => [styles],
        self::FIRE => [Color::LIGHT_RED, Effect::BOLD, BG::LIGHT_YELLOW, Effect::ITALIC],
        self::LAGOON => [Color::BLACK, BG::LIGHT_BLUE, Effect::UNDERLINE],
        self::BLINK => [Effect::BLINK, Color::LIGHT_CYAN],
        // You can use interface `Styles` to define your theme
        self::ALERT => [Styles::BLINK, Styles::WHITE, Styles::BG_LIGHT_RED],
    ];

    /**
     * @return array
     */
    protected function prepareThemes(): array
    {
        return \array_merge(self::MY_STYLES, parent::prepareThemes());
    }
}

And that's it!