Alter hook to adjust image effect

Hi! I changed the hook to pass image_effects as an array.

Why not keep it simple and add a hook to alter the whole image style? ImageStyleInterface already has useful helper methods like getEffects(), addImageEffect() and deleteImageEffect(), this way we can make use of those. This also opens up the possibility to do other things with the image style, like e.g. changing the name. I'll start a new branch implementing this as a proof of concept.

Tested out MR 23 and appears to work for me. Ended up using the example code from the API.

I like it. The ability to alter the image style entity is relatively simple, and provides all the flexibility developers need. Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.