charton 0.5.0

A high-performance, layered charting system for Rust, featuring a flexible data core and multi-backend rendering.
Documentation 
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use crate::chart::Chart;
use crate::mark::area::MarkArea;

/// Extension implementation for `Chart` to support Area Charts (MarkArea).
impl Chart<MarkArea> {
    /// Configures the visual properties of the area mark using a closure.
    pub fn configure_area<F>(mut self, f: F) -> Self
    where
        F: FnOnce(MarkArea) -> MarkArea,
    {
        let mark = self.mark.take().unwrap_or_default();
        self.mark = Some(f(mark));
        self
    }
}