Menu and Icons need to scale on higher resolution displays

[jem-green]

Needs font / icon scaling as difficult to use on higher resolution displays. In the short term possibly add menu item to have large icons. I have the font size set to 36 to make it readable.

[cmaglie]

Duplicate of #4376.

Please try the test build on #4376 (you can find it at the bottom of the discussion) and report back if it works for you.