Images Sizes throughout Store.....

I am having a little trouble figuring out which images are controlled by the admin settings both in “appearance” and in “thumbnails”.

Here is what I am trying to do:

Category & Product grid thumbnails = 135x135

Product detail page thumbnail = 200x200

Product detail page popup image = 600x600

My question is how can i differentiate, in the system, between the 135 and the 200 image sizes?

Sorry if this is confusing, but it has to be possible.

What I read what you have one image size and the software creates the thumbnail for you.

I do not know where that code is located.

Anyone know?

In 2.1 you go to Admin tab > Settings and on the right near the bottom click on thumbnails. you can set all the thumbnail sizes.