T15 Charts: cartesian with axes, legend, crosshair, tooltip, zoom, annotations and export (T15a); pie, donut, radar, heatmaps, treemap, sunburst, waterfall and spreads (T15b); sankey, funnel, gantt, force graph, chord, parallel coordinates, bullet and progress (T15c)

src/theme/chart.rs

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+use gpui::{Pixels, Rems, px};
+
+use super::{Theme, tokens::px_to_rems};
+
+/// A chart's measures.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub struct ChartSizes {
+    /// A chart's height, legend and axes included.
+    pub height: Rems,
+    /// Room beside a plot for its value labels.
+    pub gutter: Rems,
+    /// Room under a plot for its category labels.
+    pub foot: Rems,
+    /// Room a plot keeps above and to its right, so dots and strokes stay whole.
+    pub inset: Rems,
+    /// The least room a category label takes along its axis; closer labels thin out.
+    pub label: Rems,
+    pub stroke: Rems,
+    /// Widest a bubble's radius grows.
+    pub bubble: Rems,
+    /// How far a slice under the pointer lifts out.
+    pub lift: Rems,
+    /// Gridlines and rules.
+    pub hairline: Pixels,
+}
+
+impl Theme {
+    pub fn chart(&self) -> ChartSizes {
+        ChartSizes {
+            height: px_to_rems(280.0),
+            gutter: px_to_rems(48.0),
+            foot: px_to_rems(28.0),
+            inset: px_to_rems(8.0),
+            label: px_to_rems(64.0),
+            stroke: px_to_rems(2.0),
+            bubble: px_to_rems(24.0),
+            lift: px_to_rems(6.0),
+            hairline: px(1.0),
+        }
+    }
+}