Move data polling call outside the page create event handler. This way it only needs to be done once.
Tweak how channels are changed in a way that should make it more reliable.
Adjust color ramp up factor.
Change slider background to match the color currently being set.
Make selection box for fixtures thicker.
Add code (commented out for now) to do coloring individual to each slider.
Delete trigger file also when scene is deleted.
Refresh sliders on page transition.