Single value visualization goes red when value==zero

Hi, I have a single defined like this:eventtype=mlc sourcetype=tps host=$host_token$ | ... | eval par_new_%_of_tps = round(total_par_new_duration_ms/total_tps_duration_ms,2)*100 | fields par_new_%_of_tps$time_token.earliest$$time_token.latest$nonefalserangevalueRed >= 41, Orange 20-40, Green < 20searchvalueblock0["0x65a637","0xf7bc38","0xd93f3c"][20,40]00standardabsoluteauto11 The aim is to change the color based on the value according to thresholds defined in "rangeValues" [20,40]. This works for all values except 0, when the box goes red (it should be green). I guess this is because the "min" is set to 1, so if the value is below the range of 1-20, it goes to the wrong color. So should I set the min to be 0? Anyone know how? Thanks, John