When creating or editing a technician you have to assign a color to them so that the job blocks are shaded with the chosen color:

You can select the color when editing and/or creating a technician in this section here:

You can see the assigned color when you assign someone to a job by going in the Scheduling view and clicking on 'Assign':

Choosing your technician:

You will see the job change color accordingly:

Have questions about are color coding? Email us for answers - we love coloring: help@modernmaid.io