% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/girafe-utils.R
\name{get_fill_levels}
\alias{get_fill_levels}
\title{Extract Fill Levels from ggplot Object}
\usage{
get_fill_levels(ggobj)
}
\arguments{
\item{ggobj}{A ggplot2 object}
}
\value{
Character vector of fill levels, or NULL if no fill mapping exists
}
\description{
Evaluates the fill aesthetic mapping in the context of the plot data
to extract fill levels. Handles both simple column references (e.g., \code{fill = cyl})
and expressions (e.g., \code{fill = factor(cyl)}).
}
\keyword{internal}
