Shoehorn theme has been updated to new version v22.214.171.124 with updated fixes. The new version is now under Release candidate level, so you can download it to test it out on your Moodle 2.9 test servers however it is not recommended for the production servers.
The key improvement to the new version is being the ability to change certain colours on the ‘Look and feel settings page’ including a different background image for front page and other site page.
The new version incorporates:
1. Fix padding of lists in popup dialogues. 2. Conversion to some colour UI settings - work in progress
Apart from all the mentioned features what I liked the most is the ability of Login page changing background images option and Site pages that you can customise with your own content.
You should also give this theme a try as now it is the flagship theme of Gareth J Barnard, You can download the RC Shoehorn theme from this link: https://moodle.org/plugins/view/theme_shoehorn
Please share your views about the Shoehorn theme in the comments.