Inverted Heatmap

Heatmaps can be inverted by reversing the order of colors in the colormap

ScottPlot.Plot myPlot = new();

double[,] data = SampleData.MonaLisa();

var hm1 = myPlot.Add.Heatmap(data);
hm1.Colormap = new ScottPlot.Colormaps.Viridis();
hm1.Position = new(0, 65, 0, 100);

var hm2 = myPlot.Add.Heatmap(data);
hm2.Colormap = new ScottPlot.Colormaps.Viridis().Reversed();
hm2.Position = new(100, 165, 0, 100);

myPlot.SavePng("demo.png", 400, 300);

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This recipe is one of many in the Heatmap category