Figure 13.1 A plot with a linear gradient fill R code	Figure 13.2 A plot exported by gridSVG R code	Figure 13.3 A rectangle with a linear gradient fill R code	Figure 13.4 Rectangles with radial gradient fills R code
Figure 13.5 Rectangles with pattern fills R code	Figure 13.6 A pattern fill based on several grobs R code	Figure 13.7 Rectangles with filter effects R code	Figure 13.8 Rectangles with a clipping path R code
Figure 13.9 Applying a black-and-white mask R code	Figure 13.10 Applying a grayscale mask R code	Figure 13.11 A "bbox" gradient fill R code	Figure 13.12 A "coords" gradient fill R code
Figure 13.13 A gradient fill defined within a viewport R code	Figure 13.14 An SVG file with a Google Font R code