Method gradient_mode

src/classes/cls_graph.rs:126–129

Set the gradient coloring mode - `GradientMode::Value` (default): Color based on data value at each position. More information-dense as color encodes actual values. - `GradientMode::Position`: Color based on vertical row position (btop-style). Top rows get "hot" colors, bottom rows get "cool" colors. More intuitive as "higher = hotter" physically matches the graph.

(mut self, mode: GradientMode)

    ///   Top rows get "hot" colors, bottom rows get "cool" colors.
    ///   More intuitive as "higher = hotter" physically matches the graph.
    pub fn gradient_mode(mut self, mode: GradientMode) -> Self {
        self.gradient_mode = mode;
        self
    }

    /// Invert the Y-axis fill direction (fill from top down instead of bottom up)
    ///