UI Fixes

+ Adjusted dark theme colors
+ Moved setting to an activity
+ Code format
+ Changed some icons
+ Minor fixes

app/src/main/java/com/topjohnwu/magisk/utils/Utils.java

@@ -91,9 +91,6 @@ public class Utils {
             } else {
                 Shell.su("rm -rf /magisk/.core/bin", "setprop magisk.root 0");
             }
-//            if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean("enable_quicktile", false)) {
-//                setupQuickSettingsTile(context);
-//            }
             PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean("root", b).apply();
         }
     }