diff --git a/third-party/AmbilWarna/src/yuku/ambilwarna/widget/AmbilWarnaPreference.java b/third-party/AmbilWarna/src/yuku/ambilwarna/widget/AmbilWarnaPreference.java
deleted file mode 100644
index d9daecdbf..000000000
--- a/third-party/AmbilWarna/src/yuku/ambilwarna/widget/AmbilWarnaPreference.java
+++ /dev/null
@@ -1,129 +0,0 @@
-package yuku.ambilwarna.widget;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.os.Parcel;
-import android.os.Parcelable;
-import android.preference.Preference;
-import android.util.AttributeSet;
-import android.view.View;
-
-import yuku.ambilwarna.AmbilWarnaDialog;
-import yuku.ambilwarna.R;
-
-public class AmbilWarnaPreference extends Preference {
-	int value;
-
-	public AmbilWarnaPreference(Context context, AttributeSet attrs) {
-		super(context, attrs);
-		setWidgetLayoutResource(R.layout.ambilwarna_pref_widget);
-	}
-
-	@Override protected void onBindView(View view) {
-		super.onBindView(view);
-
-		// Set our custom views inside the layout
-		final View kotak = view.findViewById(R.id.ambilwarna_pref_widget_kotak);
-		if (kotak != null) {
-			kotak.setBackgroundColor(value);
-		}
-	}
-
-	@Override protected void onClick() {
-		new AmbilWarnaDialog(getContext(), value, new AmbilWarnaDialog.OnAmbilWarnaListener() {
-			@Override public void onOk(AmbilWarnaDialog dialog, int color) {
-				if (!callChangeListener(color)) return; // They don't want the value to be set
-				value = color;
-				persistInt(value);
-				notifyChanged();
-			}
-
-			@Override public void onCancel(AmbilWarnaDialog dialog) {
-				// nothing to do
-			}
-		}).show();
-	}
-
-	public void forceSetValue(int value) {
-		this.value = value;
-		persistInt(value);
-		notifyChanged();
-	}
-
-	@Override protected Object onGetDefaultValue(TypedArray a, int index) {
-		// This preference type's value type is Integer, so we read the default value from the attributes as an Integer.
-		return a.getInteger(index, 0);
-	}
-
-	@Override protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
-		if (restoreValue) { // Restore state
-			value = getPersistedInt(value);
-		} else { // Set state
-			int value = (Integer) defaultValue;
-			this.value = value;
-			persistInt(value);
-		}
-	}
-
-	/*
-	 * Suppose a client uses this preference type without persisting. We
-	 * must save the instance state so it is able to, for example, survive
-	 * orientation changes.
-	 */
-	@Override protected Parcelable onSaveInstanceState() {
-		final Parcelable superState = super.onSaveInstanceState();
-		if (isPersistent()) return superState; // No need to save instance state since it's persistent
-
-		final SavedState myState = new SavedState(superState);
-		myState.value = value;
-		return myState;
-	}
-
-	@Override protected void onRestoreInstanceState(Parcelable state) {
-		if (!state.getClass().equals(SavedState.class)) {
-			// Didn't save state for us in onSaveInstanceState
-			super.onRestoreInstanceState(state);
-			return;
-		}
-
-		// Restore the instance state
-		SavedState myState = (SavedState) state;
-		super.onRestoreInstanceState(myState.getSuperState());
-		this.value = myState.value;
-		notifyChanged();
-	}
-
-	/**
-	 * SavedState, a subclass of {@link BaseSavedState}, will store the state
-	 * of MyPreference, a subclass of Preference.
-	 * <p>
-	 * It is important to always call through to super methods.
-	 */
-	private static class SavedState extends BaseSavedState {
-		int value;
-
-		public SavedState(Parcel source) {
-			super(source);
-			value = source.readInt();
-		}
-
-		@Override public void writeToParcel(Parcel dest, int flags) {
-			super.writeToParcel(dest, flags);
-			dest.writeInt(value);
-		}
-
-		public SavedState(Parcelable superState) {
-			super(superState);
-		}
-
-		@SuppressWarnings("unused") public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
-			public SavedState createFromParcel(Parcel in) {
-				return new SavedState(in);
-			}
-
-			public SavedState[] newArray(int size) {
-				return new SavedState[size];
-			}
-		};
-	}
-}