This guide allows you to update the Knight Online UI to a dark theme.
After following this quick guide, you will be able to play using the dark theme shown in the picture below.
Simply download this file, decompress it and copy the contents of “UI” into the “UI” folder inside your Knight Online client directory. Start the game and enjoy this new theme. This is only a visual and local change.
NOTE: I am not the owner or author of this files. The author is Spyyder and this was posted a while ago here. Spyyder gets all the credit for this changes. Thank you!