Method stroke

examples/demo.php:4834–4834

()

    public function setSize(string $size): static { return $this; }
    public function setStyle(string $style): static { return $this; }
    public function stroke(): string { return ''; }
    public function getCanvas(): Canvas { return new Canvas(); }
    protected function calibrate(): void {}       // trip wire — must NOT appear on $studio->brush->
    public static function find(int $id): ?static { return null; }