@shodanx2 said:
the rest of the layout redesign doesn’t have any difficulties except for some the new proposed features
You and I will have to disagree on that statement, because I know I cannot convince you, and don’t feel like arguing with you anymore (hence the post that was live for a few minutes before I deleted it; it’s just not worth the effort).
But at this point, I want to emphasize @Coises’ earlier suggestion: Make it a plugin at first. Try it out, take it round the block, learn the difficulties with the extra features you want, get it better, get it bulletproof. All the mockups in the world will count as nothing compared to such real-world proof. If people like it, maybe it will be to the 2020s what TextFX was to the 2010s: a plugin that a huge population of users installed, and that they still ask about a decade after the author abandoned it.
But if you want suggestions
start simple, with just reworking the “look and feel”, without trying to add the extra features like the live count
redo your icon design: the industrial/bolted-plate design looks/feels nothing like anything else in Notepad++, so it doesn’t seem like it’s part of the same app. Design some icons similar to the Fluent toolbar icons, and it would at least fit in with one of the existing GUI options.