Hi, how to add custom AuthClient icon in standart component yii2-authclient?

Hello, please tell me how to add custom AuthClient icon in standart component yii2-authclient?

After the last update Yii2 was gone one client of a regional network of custom icon,

how to add another icon to my custom client?

P.S.

Regional network - odnoklassniki.ru | ok.ru