Changing Tabulator cell color through cell formatter is removing the value displayed
I figured out the solution. The documentation doesn't say it, but custom formatters HAVE to return a value in some way, shape or form.
So the code to rectify the issue would simply be the following:
function testFormatter(cell, formatterParams) {
var bvid = cell.getValue();
cell.getElement().style.backgroundColor = "#A6A6DF";
return bvid
}