I’m trying to show ventilation (VE) from a Tymewear sensor on the activity timeline with zone background shading, the same way power/HR panels can be shaded.
Setup (premium subscriber):
- Stream:
tidal_volume_min(shown as “VE (v/min)”), imported from the Garmin FIT (Tymewear dev field). The line plots fine. - Created a Custom Zones set on this stream, 5 zones, absolute values: 0–46 / 46–63 / 63–95 / 95–150 / 150–250 (start inclusive, end exclusive).
- Added a custom chart on the activity timeline: a Line plot for
tidal_volume_min, plus a Zone plot referencing the 5 zones (VE-1…VE-5), opacity 0.3, Scale/Axis set totidal_volume_min(same axis as the line).
Problem: the VE line renders correctly, but the zone bands never appear as background shading on the timeline. I’ve tried the Line (“As is”) and Bars plot types, matched the Scale/Axis of the line and the zone plot, saved, and refreshed. Time-in-zone for these custom zones works fine elsewhere — only the chart background shading is missing.
Question: how do I get zone background shading to render for a custom stream on the timeline custom chart? Is this supported for custom streams, or is it a bug?
, but now I can see zones.