Thanks for the topic.
1. Please read our documentation and create blog page http://xstore.helpscoutdocs.com/article/44-blog-page.
If you want to change breadcrumbs image go to Theme Options > General > Breadcrumbs > http://prntscr.com/cjprj5 You may use different breadcrumbs images for simple pages, just upload Featured image for your page. It does not work for Shop and Blog pages because these pages are special pages. They use breadcrumbs image from Global settings.
2. Likely the problem will be solved by creating the Blog page and changes in Settings > Reading.
Thanks Rose for the reply. I have followed all the steps you have told me but still, the blog image is set in the breadcrumbs. I dont want any image on the breadcrumbs but a single color #f6f6f6
Even after removing the default image in the breadcrumbs the blog post image is to be seen in the breadcrumbs area. Now there is no setting in the documentation of how to get rid of the image and set the breadcrumbs to a single color #f6f6f6
I’ve created Home and Blog pages http://prntscr.com/i2piy7 > http://prntscr.com/i2pj2t. Please check the blog page breadcrumbs now.
If you want to use the blog page as Home, let me know and I will provide custom css code to hide the image from breadcrumbs.