How can I change the max size of product pictures in the Narrative theme?

Hello, all!

I’m looking to change the max size of product pictures in the code.

So if we go to preview of Narrative on theme store, click → Menu → All Products; You will see the images of various different products. In this website, they are all very neat and tidy, all in the same size. In my website, they are all over the place, one is smaller, the other takes the whole page. Now, you might say I should’ve used recommended size pictures. BUT, while digging in the code of Narrative, I have found that in section product-preview-image.liquid → Assign max_height…} You can change the max size of product picture being displayed at the top. -> Menu → All Products → Click on any Product → First picture.

So could someone please edit the code so that there would be a max size limit for the images in ‘ALL PRODUCTS’ section?

Note: My website would look something like this -> Menu → Shop → (displays collections in the same way as ‘All Products’ mentioned above) -****> Shows all products in collections (again, same style) → Finally we’re at the final product page.

Hope that made any sense :')