X Axis Labels inverted on Heatloss Screen

[BenjaminWatts]

This is a great screen: https://heatpumpmonitor.org/heatloss.

I noticed that the Outside Temperature labels on the graph are ascending - but should be descending (at least to match the tooltips for the scatter-points).

Sorry - I don't really do PHP but would otherwise have looked for the code!

[MrTimbones]

The axis is "Room minus Outside Temperature", so it should be ascending.
Left end is when outside is warm, right side when outside is cold so a large difference to inside.