I'm wondering if it would be useful to toggle raster bands on and off in the Contents pane, similar to what we can do with vector layers: Toggle visibility for individual Categories on Symbology tab
For example, toggle off Band_1 and toggle on Band_4 (near infrared).

I'm aware that there is similar functionality in the right-click menu of each symbology class. I'm wondering if that functionality would be more intuitive as checkboxes.
Related: Indicate that raster imagery has other hidden bands