A small issue with the widgets-demo.
When the slider is set to 1 or 100 the 2 other widgets in that row change their position, because the value-text gets 1 or 3 digits.
There must be some option that the text widget get a constant size.
You can add a (gs:set-size ...) line here:
(gs:label 'SliderStatus "30" )
(gs:set-size 'SliderStatus 30 12)
Lutz