I know what do you mean and if through the js doesn't work properly I agree that something is wrong. But I have the same question: When you want a certain function that you can simply use through the designer's menu, why you try to do all through the script..?! There is already the opacity meter for all the components and works perfectly! Why don't use it..? I will never understand you on this....
I can understand that as a prof designer you are used to do it, but I checked all your widgets and none of them uses neither one of the designer's functions.. This is crazy man..!
(friendly speaking of course, so don't take my comment as an accusation. You're free to do it as you want)
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