Some Amazing Marvin functionality is very advanced and/or used very rarely. We hide such functionality behind "secret commands". You can enter secret commands by pressing space bar to open the "Quick Add" bar (ensure that the Quick Add strategy is enabled):
Secret commands always start with a "_", for example: "_blur". Type this in the input bar at the top of your screen
then press enter. Depending on which command you used, you might see a message at the bottom informing you that the command worked:
In this case, typing "_blur" and pressing enter will blur the title of your tasks and projects and typing it again will unblur them:
These are other secret commands that you can use: