Since the newest version (3.7) of the DataPlotly plugin it is possible to match the layer legend colours with that of the legend of a histogram or pie chart. Thanks to Matteo Ghetta and Jürnjakob Dugge for this new feature!

This video shows how to match the legend of a land cover map with that of a pie chart showing the percentage of land cover in a subcatchment.

This video is part of IHE Delft OpenCourseWare. For more free GIS materials check http://www.gisopencourseware.org