Checkmk Werk 13916: Barplot dashlet: Fix the bar coloring

ID: 13916 Title: Barplot dashlet: Fix the bar coloring Component: Multisite Level: 1 Class: Bug fix Version: 2.2.0i1 The styling of barplot bars was not strict. Some bars appeared in black and not as expected in a light blue. This is fixed and all barplot bars are now colored in light blue again.