This is a picture that regularly come with Thinger and Firefox zooming to <>100%.
Other browsers display the dashboard cleanly.
Seems to be a glitch of the Firefox rendering engine…
OMG… does it happen with all widgets, or just the tacho?
Apparently, only the tacho.
But I tried on different PC/tablets, dashboards and it is reproductible.
Only on Firefox with Zoom levels < 100%.
After a full refresh, it is OK for a while, but if you call another tab and return to the first tab you get that.
The other widgets with cut text height are OK, the text size is just set too big.
In the past I had not noticed that effect.