XF 1.5 How to remove the outline buttons on taigachat ?

[Reaks Lobby]

Hi, I want to know how to remove the outline buttons on taigachat

Image of my problem :http://prntscr.com/93rz53

Best regards

 

[Brogan]

https://xenforo.com/community/threads/where-to-obtain-support-for-third-party-add-ons.92672/