With a MATE Panel item set to 'application in terminal'

[![add launcher](https://i.stack.imgur.com/D9nXJ.png)](https://i.stack.imgur.com/D9nXJ.png)

I see `xterm`:

[![htop in xterm](https://i.stack.imgur.com/b95ej.png)](https://i.stack.imgur.com/b95ej.png)

I want to change that to `gnome-terminal` (or `mate-terminal` in MATE)