I have spent 6 hours trying to find an easy and workable solution to the missing sidebar on Post page issue in the Twenty Eleven theme. I'm not experienced with codes, wouldn't have a clue about creating a child theme and ultimately just want to create a nice website. This plugin sorted the issue in a couple of clicks and I also get other options to fine tune colours. Thank you so much for not only creating this plugin, but for allowing me and all the others here to have access to it. Thank you.