downgraded jni lib (due to incompatibilites on macOS 10.13.x)

main/pom.xml

@@ -26,7 +26,7 @@
 		<!-- dependency versions -->
 		<cryptomator.cryptolib.version>1.2.1</cryptomator.cryptolib.version>
 		<cryptomator.cryptofs.version>1.8.7</cryptomator.cryptofs.version>
-		<cryptomator.jni.version>2.1.0</cryptomator.jni.version>
+		<cryptomator.jni.version>2.0.0</cryptomator.jni.version>
 		<cryptomator.fuse.version>1.2.0</cryptomator.fuse.version>
 		<cryptomator.dokany.version>1.1.11</cryptomator.dokany.version>
 		<cryptomator.webdav.version>1.0.10</cryptomator.webdav.version>

main/ui/src/main/java/org/cryptomator/ui/fxapp/FxApplication.java

@@ -8,7 +8,6 @@ import javafx.stage.Stage;
 import org.cryptomator.common.settings.Settings;
 import org.cryptomator.common.settings.UiTheme;
 import org.cryptomator.common.vaults.Vault;
-import org.cryptomator.jni.MacApplicationUiAppearance;
 import org.cryptomator.jni.MacFunctions;
 import org.cryptomator.ui.mainwindow.MainWindowComponent;
 import org.cryptomator.ui.preferences.PreferencesComponent;
@@ -96,12 +95,12 @@ public class FxApplication extends Application {
 				break;
 			case DARK:
 				Application.setUserAgentStylesheet(getClass().getResource("/css/dark_theme.css").toString());
-				macFunctions.map(MacFunctions::uiAppearance).ifPresent(MacApplicationUiAppearance::setToDarkAqua);
+				//macFunctions.map(MacFunctions::uiAppearance).ifPresent(JniException.ignore(MacApplicationUiAppearance::setToDarkAqua));
 				break;
 			case LIGHT:
 			default:
 				Application.setUserAgentStylesheet(getClass().getResource("/css/light_theme.css").toString());
-				macFunctions.map(MacFunctions::uiAppearance).ifPresent(MacApplicationUiAppearance::setToAqua);
+				//macFunctions.map(MacFunctions::uiAppearance).ifPresent(JniException.ignore(MacApplicationUiAppearance::setToDarkAqua));
 				break;
 		}
 	}