$vars{myVarA}->{type} = "float"
$vars{myVarA}->{value} = 0.5
$vars{myVarA}->{ui}->{min}=0
$vars{myVarA}->{ui}->{max}=1
$vars{myVarA}->{ui}->{step}=0.001
$vars{myVarA}->{ui}->{widget}="slider"