Pictograms

hello I can't understand the difference between the "4 squares" and "3 bands" pictograms of the main menu above the volume indicator?

I understand that the "square" corresponds to the modifications that we wish to make to the pads and that the "crown" corresponds to the master but impossible to understand the other 2 pictograms?? can someone help me please

"4 Squares" represents the Metering, Muting, Arming, etc of the Current Program...

"3 Bands" represents the Metering, Muting, Arming, etc of the Current Track...

"Solid Square" represents the Metering, Muting, Arming, etc of the Current Pad...