Sennheiser SDC 8200 SYS Software Manual page 86

Voting
86
If you select "Synoptic detail", the synoptic view of the conference is
shown on the video PC. Each console icon is marked with a color
symbolizing the vote cast. A palette on the right-hand margin shows
what the colors mean.
If you select "Bar-chart", the voting result is shown as a bar or circle
chart on the video PC. The votes cast for one option and the total
votes cast are also displayed as a number.