Generate mapper from name of variable to name of color
mipplot_generate_color_mapper(raw_table, category_separator = "\\|")rule table which includes "Color_code" column.
regular expression for separating right-hand-side variable name into categories. For example: separator should be "\|" for "Secondary Energy|Electricity|Coal"
named list of named string vectors. for example,
result = list( "Emissions|CO2" = c( "Fossil Fuels and Industry" = "#17202a", "Land Use" = "#008000", ...), "Emissions|CO2|Fossil Fuels and Industry" = c( "Energy Demand" = "#444444", ... ),...