I'm very sorry you had issues with the plugin.
I also apologize for not responding sooner. I don't actually check this forum often because I have never gotten many support requests here.
Also, as you can imagine, I make no profit from this plugin. It is something I created in my spare time some time ago. These days I do have a day job so I don't have as much time as I used to for working on this plugin.
I have, however, been working on the next version recently. I'm updating the plugin to be fully compatible with newer versions of WordPress and also fixing some of the bugs.
The particular issue you were having is only an issue with the default color schemes that come with the plugin, not the plugin itself.
Unfortunately, there is no real good way to keep the default schemes up-to-date, as the styles on the admin side are constantly changing between WordPress versions. Every time there is a new version of WordPress I must go in and manually update each of the default schemes by hand. So, not a very easy process.
But, as I said, I will be updating the plugin very soon. I hope you might see this message and might give it a try when it comes out.
Thanks for using the plugin and I hope the issues haven't caused you too much of an inconvenience.