Entry into Fortnightly Topic Challenge #40
You've returned from your lunch break to a small package. Inside is a note that reads:
Please come to my office at your earliest convenience. We have important matters to discuss, assuming you can figure out what the topic of our meeting will be. All you need to do is figure out how this little present was constructed.
- The Boss
Along with the letter is a circular piece of glass with various colors inside.
What is the topic that will be discussed at this meeting?