Scrutiny has been able to report insecure content for a while; links to insecure (http) pages from your secure pages, and secure pages which use resources with insecure (http) urls.
Scrutiny has even been able to alert you to these problems at the end of the scan.
The question was "why are these things in different places" (pages with mixed content were accessed via the SEO results and 'rogue' links to insecure pages were with the links results).
With version 7.3 this has all been made a little more user-friendly. There's a new results table which shows all of this together in a usable way.
To bring these functions into play, make sure that your starting url is https:// and make sure that you have 'check images' and 'check linked css and js files' switched on in your site's settings
Also check 'Alert when links to http site are found' in Preferences > Links.
But regardless of whether you have this alert switched on or what you choose when you see it, you'll now see 'Insecure Content' as an option on your Results selection screen:
The information is still in the old places too; see the details of 'links to internal http pages from secure pages' in the links tables by choosing 'http: links' from the Filter. And you can see pages with mixed content in the SEO results as before, Select 'mixed content' from the Filter drop-down button. If any pages contain links to insecure resources, they'll be listed.
This is all in Scrutiny version 7.3 which has just been released.