# File lib/prawn/graph/themes.rb, line 62
        def initialize(theme_hash)
          @name = theme_hash['name']
          @title = theme_hash['title']

          if theme_hash.keys.include?('colours') 
            @colours = theme_hash['colours']        
          elsif theme_hash.keys.include?('colors')
            @colours = theme_hash['colors']        
          end

          if theme_hash.keys.include?('font_colour') 
            @font_colour = theme_hash['font_colour']        
          elsif theme_hash.keys.include?('font_color')
            @font_colour = theme_hash['font_color']        
          end

          if theme_hash.keys.include?('background_colour') 
            @background_colour = theme_hash['background_colour']        
          elsif theme_hash.keys.include?('background_color')
            @background_colour = theme_hash['background_color']        
          end

          if theme_hash.keys.include?('marker_colour') 
            @marker_colour = theme_hash['marker_colour']        
          elsif theme_hash.keys.include?('marker_color')
            @marker_colour = theme_hash['marker_color']        
          end

          @stroke_grid_markers = theme_hash['stroke_grid_markers'].to_i
        end