I have an outdoor temp sensor. Now it’s -1.6 degrees Celsius. The “Value” type widget shows 1.6 in the main window. However when editing the widget, in the configuration, the value is correct, -1.6.
So it’s a matter of display, somehow minus sign gets lost.
Also, the precision is not respected. My sensors and Home Assistant show this as -1.62, HomeHabit shows just 1.6. Ith should show the same precision/resolution.
This is even worse at thermostats, where no decimal values are shown for temperatures at all.