[CVD-OS VERSION 1.0] In the middle is the console which tells you information on what vowel you're on. Around are the vowel's letter. The button in the bottom right is for muting the background music.
This is a little invention to help with my book. It shows the vowels in the Cassean alphabet. You can use any scripts with credit, but you can't use any symbol. I used the "username" block so people don't mess with this, but think of it as a firewall.