Rated 3 out of 5 stars

it would be nice if the effects for websites are not stored

This review is for a previous version of the add-on (3.2). 

You probably mean you want to be able to apply the effect automatically. This feature is on my to-do list for both Colorific and Color Transform, but it will probably take one or two months. (I have been asked for this before, but I first improved the speed of the color transformation.)