add_svgs_to_ggplot()
Add svg to chart_container object
add_svgs_to_table()
generate_background_chart()
Generate a ggplot gtable with only background elements
get_node_attrs()
Convert XML node attributes (and optionally content) to a list
get_rough_chart()
Create a roughjs chart
ggrough()
Create a new ggRough chart
keys_check()
Test if keys are in list
nv_to_list()
Convert a named vector to a named list