Thanks you for the review and the kind words.
Version 1.91 is released. You can now exclude a list of domains by right-clicking on the list of words: a contextual window will appear where you can specify the domains you don't want Mukti Find to try to highlight. I also tried to enhance the performance.
Regarding the interface, it will be revamped soon: the toolbox icons (currently at the bottom of the interface) will be part of the new contextual window.
Stay tuned!