This is an app that can be a game, a note-keeper, or both.

Main window - add or filter notes, lock the list
Library - select active icons from the list
Settings - change icon style, clear data, install firefox app

You select a combination of icons and insert some text to add it to the list. To get it back you must either have the same combination of icons, or you can press the button that lists all the data. If you press the lock button, the text input field and the show-all button are hidden. To unlock you have to press the same combination that ware active during the locking.

Dimitris Gardiklis - 2013

icon size
icon color
icon filter order