Jetpack Mobile Theme Headers For Pages vs. Blog

My site uses a 2011 child theme that uses a “custom header” for the blog page (which is *not* the home page) and then different images for the headers on the non-blog pages. See the blog (https://www.adammandelman.net/porous-places/) versus the home page (https://www.adammandelman.net/), for example.

The Jetpack Mobile Theme is great, except that it pulls in the “custom header” used for my blog onto every single page on my site. I know years ago I edited either some php files or the css (or both) for my site to set this whole complicated mess up, but I’m not a web developer by any stretch of the imagination and have no idea how to replicate that with the Jetpack Mobile Theme.

Are there any simple solutions to get my individual, non-blog header images into the mobile theme? Alternatively, is there a way to get the header image link on all pages in the mobile theme to point to the blog?

Thanks, folks.