I added a handy little tool to Konsole recently.
konsoleprofile allows any profile options to be set from the command line. This means that it is possible to change the color scheme, font, tab titles, menu bar mode, scrollback size, icon, key bindings, cursor options and others without resorting to the GUI.
For example, running:
Inside the shell will change the active tab to use the green-text-on-a-black-background color scheme.
Will set the icon for the active tab to the KDE icon.
Will hide the menu bar.
The actual parsing of the commands are done inside konsole. konsoleprofile is just a trivial shell script which puts some magic markers around the command so that Konsole interprets it as a profile change request. Aside from simplicity, this has an advantage over the D-COP days of old because it doesn't matter when it is being run locally or on another computer being accessed via SSH. The tool currently affects every tab using the same profile as the current tab, that is clearly not always desirable, but I plan to fix that shortly.