Log in, open Strava heatmap,
F12 → Network, filter heat, click a tile request → Headers → copy the whole
Cookie value and paste below. (Or Application → Cookies: the four CloudFront-* /
_strava_idcf cookies as name=value; ….) Expires ~24h. On a phone: Chrome can't show these — use Firefox for Android + a cookie-editor add-on to copy them, then paste here.
Route colours
Click map to add points · drag markers or the route to adjust. Route: ■ offroad · ■ paved road. Heatmap needs your Strava cookie — see 🔑 above.