Color themes
A <graphspec> element can specify a color theme via the
      theme attribute.
The following are valid color themes for the theme attribute.
For each theme in the Theme column, three images are displayed in the
          Examples column: 
      - the first image shows the theme as a linear scale
- the second image was created using a sine/cosine function to demonstrate how a scatterplot might look with this theme
- the third image was created using a different sine/cosine function to show how well the density function will respond to very high frequencies
| Theme | Examples | 
|---|---|
| alpinecolors |  | 
| aquamarine |  | 
| armycolors |  | 
| atlanticcolors |  | 
| auroracolors |  | 
| avocadocolors |  | 
| beachcolors |  | 
| black |  | 
| bluegreenyellow |  | 
| blueopal |  | 
| bootstrap |  | 
| brasstones |  | 
| brightbands |  | 
| browncyantones |  | 
| candycolors |  | 
| cherrytones |  | 
| cmykcolors |  | 
| coffeetones |  | 
| darkbands |  | 
| darkrainbow |  | 
| darkterrain |  | 
| deepseacolors |  | 
| default |  | 
| excel |  | 
| excelcolors |  | 
| fallcolors |  | 
| flat |  | 
| fruitpunchcolors |  | 
| fuchsiatones |  | 
| graytones |  | 
| grayyellowtones |  | 
| greenbrownterrain |  | 
| greenpinktones |  | 
| happy |  | 
| highcontrast |  | 
| islandcolors |  | 
| kendo |  | 
| lakecolors |  | 
| lighttemperaturemap |  | 
| lightterrain |  | 
| material |  | 
| materialblack |  | 
| maximum |  | 
| metro |  | 
| metroblack |  | 
| mintcolors |  | 
| moonlight |  | 
| neoncolors |  | 
| pastel |  | 
| pearlcolors |  | 
| pigeontones |  | 
| plumcolors |  | 
| rainbow |  | 
| redbluetones |  | 
| redgreensplit |  | 
| rosecolors |  | 
| rusttones |  | 
| sandyterrain |  | 
| siennatones |  | 
| silver |  | 
| solarcolors |  | 
| southwestcolors |  | 
| starrynightcolors |  | 
| sunsetcolors |  | 
| temperaturemap |  | 
| tentenorangecolors |  | 
| thermometercolors |  | 
| uniform |  | 
| valentinetones |  | 
| watermeloncolors |  | 
For more information on <graphspec> and its attributes, see <graphspec>.
