nextcloud / server

			$themes = $this->accessibilityProvider->getThemes();

			$fonts  = $this->accessibilityProvider->getFonts();

			if ($value === false) {

				$this->config->deleteUserValue($this->userSession->getUser()->getUID(), $this->appName, $key);

				return new DataResponse();

			}

			$availableOptions = array_map(function($option) {

				return $option['id'];

				return $option['id'];

			}, array_merge($themes, $fonts));

			if (in_array($value, $availableOptions)) {

				$this->config->setUserValue($this->userSession->getUser()->getUID(), $this->appName, $key, $value);

				return new DataResponse();

			}

			throw new OCSBadRequestException('Invalid value: ' . $value);

		}