April 2026
Developer Diary
One line, two stories
A share card that draws your elevation profile as a curve — then colors it by heart rate zone. The shape tells you where the terrain went. The color tells you how hard your body worked to get there.
New share template just dropped: the elevation profile runs across the top of the card as a filled curve, colored by heart rate zone as you moved through the run.
Blue where you were easy. Green through aerobic effort. Yellow as it pushed toward threshold.
If you run outdoors with any real undulation — rolling hills, a long climb, a trail with constant ups and downs — this one’s for you. The shape of the curve shows the terrain. The color shows how your body responded to it. The whole story of the run in a single glance.