I thought the little "popup" (actually pop-down) dialog box was set for a little too long, so I wanted to change the time that message was displayed. I changed the number from 5000 to 1000 and now it is much shorter.
To do this, edit the program/js/app.js file and change the below line:
this.message_time = 1000;
It was 5000 before. Make the change and test by reloading you browser. Tweak it until you are happy with the length of the dialog.
This is milliseconds.
1000 milliseconds = 1 second
5000 milliseconds = 5 seconds
500 mlliseconds = 1/2 a second
Nice "tweak" though.