ReferenceLine:Swap XY

Build 1166 on feat/2499-theming
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Baseline History
Build 11665fd6468
Current build. There are unaccepted changes, so build 834 is still the baseline.
Build 834ef3327c current baseline
Accepted by Zach Stence.
Build 2437d178ee
Accepted by Zach Stence.
Commenting is disabled because there's a newer build on this branch