How change objects color at visu

[admin]

Like this:

Code:

$(function() {
  $('.color-by-value').each(function(_, el) {
    var addr = $(el).data('object');
    if (addr) {
      grp.listen(addr, function(obj) {
        var color;

        if (obj.value) {
          color = 'green';
        }
        else  {
          color = 'red';
        }

        $(el).css('color', color);
      });
    }
  });
});