Sadly, there won't be a 4:3 version for this either. Though, 16:10 will still be supported.
As per usual, you can check out the "Configuration" folder inside for various customization options.
Also be aware that some of the tricks used in this skin will cause minor issues on specific resolutions (the gameplay won't be affected). I recommend playing on 1920x1080 or 1366x768 when using this skin, to avoid getting these issues.
(Changelog is on my profile.)