Hi all, two of the action icons - "Mark All Upgrades" and "Apply" - on my Synaptic package manager menu bar are different. I would like them to be like the "Reload", "Properties" and "Search" buttons. Please see the attached image. Can anyone help? I'm running Ubuntu 16.04, XFCE, with Numix-Circle icons. The desktop theme is Zukitwo.
Cheers