A really nice example of the use of colour in a map here. The image is from a new paper on the relationships between cold weather, influenza and mortality in Nature Climate Change (ht Ed Hawkins).
The authors have chosen a simple monochrome palette, and the map is clear from any distracting clutter. I guess the only problem is that it is a little difficult to read values directly from the map, but hey, that’s what data tables are for. The idea of a plotted data map (choropleth) is for comparison and to reveal patterns.
Ballester, Joan, Xavier Rodó, Jean-Marie Robine, and François Richard Herrmann. “European seasonal mortality and influenza incidence due to winter temperature variability.” Nature Climate Change (2016).
So one way or another it looks like Scotland rates a big fat zero.