Creates HTML content with the fallback image, styled to fit in iframes.
create_fallback_html(
plot = NULL,
shiny = FALSE,
format = "png",
width = 7,
height = 5
)HTML content string or htmltools object
A ggplot2 object or NULL for Base R plots
If TRUE, returns just the image tag for Shiny/knitr use
Image format (default: "png")
Image width in inches
Image height in inches