Bug#1020892: cinnamon: Square icon on the title bar is too small

[Green <usergreen@users.sourceforge.net>]

Source: cinnamon
Version: 4.8.6
Severity: normal

Dear Maintainer,

Square icon on the title bar is too small

"Square icon" means the icon that can make a default window into a full screen mode.
Please compare it with other default themes of GNOME, MATE, or Windows.

The problem is that there is no preference in System > Windows > Titlebar > Buttons in Desktop Menu.

Icons inside title bar are too small to use. They should be made larger that every can easily tell at just one look.

Thank you,

Green