Question 1:
I've remapped the shortcut for the "home" entry to Super+F, then I did the same to Super+E to "emacs -gui", but when I use Super+E it starts up Caja instead of Emacs. why? SOLUTION by tkn:
Question 2: My theme consists of GreenLaguna + TraditionalGreen, but on Firefox TraditionalGreen is replaced to Grenlaguna window border. why?
Question 3: Is there a way to remove emacs(Terminal) from the Applications menu? I only use Emacs gtk GUI. SOLUTION by tkn: sudo apt install menulibre && sudo apt install mozo && mate-panel --reset
Right click Menu (of any type).
Click "Edit Menus".
Toggle/untoggle "Hide from menus" on chosen element.
Save.
Question 4: Is there a way to add the entry "open terminal here"? SOLUTION by sgage:
Question 1: I've remapped the shortcut for the "home" entry to Super+F, then I did the same to Super+E to "emacs -gui", but when I use Super+E it starts up Caja instead of Emacs. why?
Because the used windowmanager "marco" also has shortcuts defined, but these do not show up in mate-configuration-center -> keyboard-shortcuts
Here is a howto to change the keyboard shortcuts of "marco":
Likely because green laguna is the gtk theme you are using but in traditional applications you can overide it with the Traditional Green titlebars however firefox is probably using the gtk theme for everything. Do you have it set to use the tab bar combined with the window buttons (CSD), if so thats probably why else wise it's just a firefox thing