Sparkline off should become standard for all devices.
Set displaySparkline attribute default as false.
As a sort of compromise I can image to have sparklines set to false for discrete attribute values.
For me sparkline is a general UI and I would like to switch it Off in general for all devices. This could be solved if we had a general config Attribute for it. (Mentioned this issue long time ago and could not found it again).
@Heizelmann : I can agree with you with a big “but…”.
I have a VariablesDevice showing weather values. I like to see the sparkline for temperature, but I don’t care for all the other values. So I’m very happy with the current behavior.
If this is going to change I can live with a global value “On/Off”.
However, if you deviate from the default by specifying one or more xAttributeOptions in your device, this override on the default should be followed.
Of cause, any explicit setting should override the default.