Hi John,
I’m not sure that’s really feasible with this plugin. Presumably, you want thumbnails to make theme/plugin images responsive, but for that you’d need control over the HTML the theme is generating. Plus, the thumbs would have to be re-generated every time you update your theme or an affected plugin. Sounds like a mess, though I know technically it IS possible, because we have tools to optimize images within themes/plugins in our EWWW Image Optimizer plugin.
If you’re just using theme-provided images in content that you are building or HTML you can alter, then I’d download those images, and re-upload them into the media library. Otherwise, we’re back to figuring out how one is going to get the theme (or a plugin) to generate responsive img HTML.
If this is HTML you can’t control then, I’d ask the theme (and plugins) to start using responsive image markup for front-end images. But there is potentially one other option! I don’t know if this would work for you, but our EWWW Image Optimizer plugin has a CDN function that works with lazy loading to make ANY img elements responsive. It works by loading a placeholder, checking to see what size of image is needed, and then requesting that exact size from our CDN. It even works with some CSS background images too, if you have anything like that.
Hi nosilver4u,
You’re right. All your points are valid. I understand completely.
Thank you for responding so quickly, and with such a thorough answer.
Have a great day!
