add_lines: Add color to lines
In wjschne/spiro: Make Animated Spirographs

Add color to lines

add_lines(
  input,
  colors = "black",
  transparency = NA,
  line_width = 0.5,
  openfile = TRUE,
  output = input
)

`input`	File name of .svg file to input
`colors`	Vector of background color
`transparency`	Transparency of colors. Ranges from 0 to 1. Default is NA (i.e., leave the colors as specified in the colors argument).
`line_width`	Width of lines. Default is 0.5.
`openfile`	Open file in default program for .svg format. Defaults to FALSE.
`output`	File name of .svg file to output. Default is to overwrite the input file. #' @return output name

library(spiro)
spiro(
  fixed_radius = 3,
  cycling_radius = 1,
  file = "add_lines.svg"
  ) %>%
  add_lines(
    colors = "firebrick",
    line_width = 3)