Intuitive user interface: bold preferences if not default setting

I am working on an idea to redesign parts of the user interface which some users find less intuitive. This ticket is the first in the series of tickets.

I propose to make all modified settings in preferences bold. This way it is easier for users to see which settings they previously changed. There is already a reset "preferences button", but in some situations users are hesitant to reset all their settings, they would rather figure out which one it was they changed earlier. Making altered setting bold seems like an easy step forward towards less mistakes, frustration and support requests.

When setting a setting back to the recommended default setting, the setting will no longer be bold.