I gave this app (3) star because of their bad uninstall code, they leave a snippet behind, and I don't like that.

Here is a workaround until they fix their app:

1) Go to Theme.liquid and DELETE the below lines :

< link href='https://s3.us-east-2.amazonaws.com/ekoma/ekoma.css.gz' rel='stylesheet' type='text/css' media='all' /> < / head >

AND

{% include 'ekoma' %}

2) search for their Ekoma.liquid file and delete it.

If the developers have a better way they can share it here with us or they can fix their app.