sick umbra
I've tried this a few times, without much success. The closest that I get is the generic HA icon which opens the HA app on the watch.
What am I missing in my approach?
Open the Home Assistant app on the paired iPhone. Settings > Companion App > Complications > Add
Select Graphic Circular, set the Display Name to Outdoor Temperature, the server is already properly "Home" and select the Open Gauge Simple Text Template
Set up Center to contain {{ states('sensor.gw2000b_wifi707b_outdoor_temperature') | round(1) }}° and note that it shows a reasonable value ("61.7°" right now)
Select the color
Leave Bottom and Gauge empty as there is not information to display there.
Save
Confirm that the complication shows on the list under Graphic
Click Update Complications
Wait a while
Open the Watch app. Click the target Infographic face
Set Sub-dial Bottom to Outdoor Temperature from the Home Assistant Category
Note that it shows the generic icon. Note that the watch shows the generic icon.
Come back hours later. Note the same generic icon shown in both places.
