I have ran into a couple issues with the spinner control where the step appears to be working not as one would expect. I just wanted some input to see if I missed some setup option or should submit these as bugs
If you have a min value other than 0, it gets added to the step.
{step:10,min:03}
value = 50
step up: new value 63, expected 60
step down: new value 43, expected 40
The other issue is double stepping do to rounding issues
{step:10,min:0,max:1000}
value = 101
step up: new value 110, expected 110
step down: new value 90, expected 100
value = 105
step up: new value 120, expected 110
step down: new value 10, expected 10
edit: updated example link to correct url