@Alan-Kilborn
It’s not a secret :) My activity on GitHub includes NppExec and two plugins for AkelPad text editor. AkelPad is unbelievably customazible: it can be a simple SDI editor similar to the standard Notepad; it can be an MDI text editor without advanced features; it can be an advanced MDI code editor with syntax highlighting, additional plugins and scripts. Finally, it is written in C, and it is small and fast.
Also, due to project needs several years ago I’ve bought Sublime Text. It is fast (not as fast as AkelPad, but anyway) and has some outstanding features for developers (including “indexing” that allows IntelliSense-like experience). On the other hand, I was shocked how hardcore and unfriendly Sublime Text is when it comes to customization. For example, I went through several circles of hell before I managed to change the background color of selected text. (While you need just a few seconds to do the same in Notepad++ or AkelPad!) Another example: Sublime Text’s workspace files can be highly customized by the user, on the one hand, but, on the other hand, it is achieved only by manual editing of these files - and the editor does not even try to suggest you what you can type in this file and what you can not! Finally, Sublime Text is updated much less frequently comparing to Notepad++ and I have not felt any benefit from being a registered user (who have bought the license): all my questions in the forums had been answered by experienced Sublime Text users (similarly to what we have in Notepad++ forums) rather than by developers’ representatives, and I had not received any official answer from the developers regarding two features I proposed (unsimilarly to Notepad++ forums) as if I was just ignored by them.