Customize bigbluebutton icon still possible in RC 3.10.3?

Description

Hi,
We have customized our RC platform (version 3.9.3) especially by changing icon-phone button by a bigbluebutton icon.
RC-custom-bbb-3.9.3

we use the method describe into the file app/ui-master/public/README.md :

cp .bigbluebutton.svg app/ui-master/public/icons/

  • cd app/ui-master/public/
  • node generateSprite.js
  • cp icons.svg …/…/…/private/public

and we modified app/videobridge/client/tabBar.js file like this :

id: 'bbb_video',
title: 'BBB Video Call',
icon: bigbluebutton',

But if we use this method into version 3.10.3 (replacing the tabBar.js file to tabBar.tsx)
this method doesn’t work anymore :

(It seems the font-family RocketChat now is used to display theses icons )

I would like to know if it’s still possible to customize icon into RC version 3.10.3 and how ?

Thanks in advance.
Regards

Server Setup Information

  • Version of Rocket.Chat Server: 3.10.3
  • Operating System: debian 10
  • Deployment Method: build src
  • Number of Running Instances: 1
  • DB Replicaset Oplog: enable
  • NodeJS Version: 12.18.4
  • MongoDB Version: 4.0.22
  • Proxy: haproxy
  • Firewalls involved: