Breadcrumb and image resolution issues

Hi there, I’ve been using the Newspaper theme to set up a site on a staging platform, and we’re nearly ready to go live, but I’ve noticed a few issues. Firstly the secondary (category) level of the breadcrumb string is not a clickable link, as expected, but I can’t find anything in the documentation on how to turn this on.

Secondly, I turned on all sizes of standard and retina crop, and yet certain module templates are still looking really low res on certain screens. For example the M3 module blocks. And yes the retina crops were turned on prior to image upload.

Thanks for your help.

With regards to the breadcrumbs issue, I would expect the category level of the breadcrumbs that reads ‘Opinion’ to be clickable in this example:
https://kku.557.myftpupload.com/opinion/what-is-bedroom-pop
Is there something I need to update in the admin panel?

And with regards to the images- on the archive listing pages we wanted a 2 column grid. In your template system it would have made sense to use either of the modules M1 to M5 for this sort of layout, however the images always looked really blurry on higher res monitors. When I actually investigated, I could see that module M1 & 2 were generating the crop sizes 324x160px standard & 648x320px retina, and module M3, 4 and 5 were generating 324x235px standard and 648x470px retina crops. A standard 13″ MacBook has a default resolution of 2560×1600, so the 648px retina crop just doesn’t seem large enough for a 2 col grid where the image will need to fill 50% width of the site, even if your overall site container were capped at 70 or 80% of the screen. The only way I have been able to get the images to look sharp on higher res monitors has been to use one of the full width module layouts (in this case M14) and override it’s default layout in the CSS so that the modules actually collapse to a smaller grid. This just doesn’t seem very practical, as I would have preferred the module layouts to work better for all screen sizes ‘out of the box’. Anyway I’m not sure you’ll be able to offer any further assistance for that issue, as obviously the image crop sizes are currently fixed, but if you can advise on the breadcrumb query that would be appreciated.

So there’s no way to make the category level of the breadcrumbs clickable? That seems like an oversight as surely the classic nature of a breadcrumb chain is that all previous levels of the hierarchy should be clickable links?