But here's just one small part of 1.5.7. Accessibility. Doesn't mean you get more workspace on your desk. It's
standards the W3C have set forth worldwide to make it better for everyone to shop. There's a couple of Chrome extensions (Web Developer and Lighthouse) that can make a store owner stop the craziness of thinking the SEs like big, fancy colors and graphics which the SEs will NEVER be able to see. We've been playing with responsive_classic as there still needs to be something for the little guy to use until they can find something "better". And, believe me, I use the term facetiously!.
https://tinyurl.com/yb5b3p36 is a test site for 1.5.7 with no mods and all demo products added. It has all sideboxes and visible settings turned on.
Using Web Developer, the site has no CSS errors except for those in the font-awesome.css that we can't control. And, there's only one HTML warning still to be addressed. Web Developer's Accessibility test gives us no errors (well, occasionally one when the bannerSix doesn't have an alt tag) and, importantly, no contrast errors. The Alerts are really a feature for the responsiv_classic template in that they result from Zen Cart "covering" the page with your product's name. It's Zen Cart's version of, "That number to call, again, is.."
Using Lighthouse, we get a score of 99, 100, 100, 100. Again, the 99 is due to external issues (jQuery and the aforementioned font-awesome.css). We could bring them in house but, you'd have to update once a week. Now, THAT is scary. I've attached an image of the score.
Can't say we've given that a thought/consideration