Setting color has no effect

[cubic3d]

I'm trying to set a color using note.color = gkeepapi.node.ColorValue.Orange or note.color = gkeepapi.node.ColorValue.White to set it back to default. Example:

keep = gkeepapi.Keep()
...
note = list(keep.find(query="SomeTitle"))[0]
print(note.color)
note.color = gkeepapi.node.ColorValue.Orange
keep.sync()

The sync does work, changes are visible on Keep. The print also prints the new color on subsequent runs of the script, so I assume the API somehow holds the value, but the visible color does not change in the browser app (yes cache and cookies cleared) nor android app. Any ideas?