Blood pressure chart in KNIME

Hi everyone!

I am trying to set up a blood pressure chart in KNIME. The data is very simple: there are three columns (systolic, diastolic, pulse), and the rows are identified by the date the measurement was taken on. I would like to make a plot (e.g. line plot or bar chart) that would indicate the level of each measurement, such as green for normal, orange for elevated, red for high. However, each column has a different value for this, e.g. systolic is normal below 120 and diastolic is normal below 80. How can I obtain this? Or alternatively, is there a way to color the background or annotate the axis with this information?

Thanks!

Marie-Claire