I have the same images (color chart, size chart etc) that need to be added to almost every product I sell. Do I upload it to each product page? Is there a better way? (flipping between supply and simple theme if that matters)
It's not an issue to upload but then when you search for a product image you have to keep clicking past those which are useless in that sense.
You can assign a specific tag to those product which have same color chart, size chart etc and code it in product file.
In this way there is no need to add these images to each product every-time.
And if you are not comfortable with tags you can use metafield app to assign specific value to products and code same as we do for tags
I'm sorry, I don't understand the response, how does the customer get to see the images then? I'm showing a color chart and an image with choice of fonts every product allows for the same colors of text and the same font choices ( I have customized liquid files with drop downs of their choices but they need to see the selections)