Ionic-cli: ionic cordova resources -i did not generate rounded icon

_From @BoltLiu on June 1, 2017 8:45_

Ionic version: (check one with "x")
[ ] 1.x (For Ionic 1.x issues, please use https://github.com/ionic-team/ionic-v1)
[ ] 2.x
[x ] 3.x

I'm submitting a ... (check one with "x")
[x ] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://forum.ionicframework.com/ or http://ionicworldwide.herokuapp.com/

Current behavior:

$ "ionic cordova resources android -i " command could not generate rounded icon.but just a square icon.
Expected behavior:

want generating rounded icon for app.

Steps to reproduce:

Related code:

$ ionic cordova resources android -i
$ ionic cordova resources android

insert any relevant code here

➜ mytabs git:(master) ✗ ionic info

global packages:

@ionic/cli-utils : 1.3.0
Cordova CLI      : 7.0.1
Ionic CLI        : 3.3.0

local packages:

@ionic/app-scripts              : 1.3.7
@ionic/cli-plugin-cordova       : 1.3.0
@ionic/cli-plugin-ionic-angular : 1.3.0
Cordova Platforms               : android 6.2.3 ios 4.4.0
Ionic Framework                 : ionic-angular 3.3.0

System:

Node       : v6.10.3
OS         : Linux 4.4
Xcode      : not installed
ios-deploy : not installed
ios-sim    : not installed

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

insert the output from ionic info here

_Copied from original issue: ionic-team/ionic#11884_