How to remove white color circular border in google devices like pixel

any one having idea how to make icon in google pixel without white border circular. I can see chrome icon doesn't have circular border. How to make it any help ?

You can see in screenshot google chrome icon looks full occupancy but other hightlighted icon doesn't.

I got answer here is step :

1. Go to tiapp.xml
2. Edit android->mainfest->application touple

Previously it was :

<application android:theme="@style/Theme.connectMobileTheme" >

After changed :

<application android:theme="@style/Theme.connectMobileTheme" android:roundIcon="@mipmap/ic_launcher_round"  android:icon="@drawable/appicon" >

This will manipulate /Projects/titanium/build/android/AndroidManifest.xml file to apply.

For this you required to maintain icon inside /Projects/titanium/platform/android/res/

Maintain icon inside this folder.

Reference : https://jira.appcelerator.org/browse/TIMOB-24659 https://developer.android.com/guide/practices/ui_guidelines/icon_design_adaptive