true, 'receive_sms_notifications' => true, 'theme' => 'light', 'language' => 'en', 'style_color' => 'blue', 'menu_color' => 'white', ]; } public function styleOptions(): array { return ['blue', 'green', 'red', 'orange', 'gray', 'black', 'white']; } public function menuOptions(): array { return ['white', 'gray', 'black', 'blue', 'green']; } public function normalizeStyle(?string $style): ?string { if (!$style) { return null; } $style = trim($style); return in_array($style, $this->styleOptions(), true) ? $style : null; } public function normalizeMenu(?string $menu): ?string { if (!$menu) { return null; } $menu = trim($menu); return in_array($menu, $this->menuOptions(), true) ? $menu : null; } }