UI tweaks

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsMain.java

@@ -2,8 +2,10 @@ package org.schabi.newpipe.settings;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.res.ColorStateList;
 import android.content.res.TypedArray;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
@@ -120,6 +122,7 @@ public class ContentSettingsMain extends Fragment {
             contentSettingsMainDialog.setOnAddListener(ContentSettingsMain.this::addTab);
             contentSettingsMainDialog.show(getFragmentManager(), "select_channel");
         });
+        fab.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.light_settings_accent_color)));
     }
 
 

app/src/main/res/drawable/ic_add_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/drawable/ic_add_white_24dp.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FFFFFF"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>

app/src/main/res/layout/dialog_contentsettingtab.xml

@@ -12,7 +12,7 @@
     android:paddingBottom="4dp"
     android:paddingTop="4dp"
     app:cardCornerRadius="5dp"
-    app:cardElevation="12dp">
+    app:cardElevation="4dp">
 
     <ImageView
         android:id="@+id/handle"