ImGui for final product (game)... bad idea?

Hi people, so I’ve been using ImGui in a game I’m making in SFML. I’m using it for debugging but also for the game user interface with the idea of replacing it for another GUI later on in development.

I don’t need super fancy graphics so I’ve been thinking of using ImGui for the final product, my idea is to place a custom Font and make the ImGui windows and buttons only with borders and text and then I could put some effects to the buttons, something like this:

What do you think? It’s a good idea? Maybe I’m missing something that makes ImGui not a good idea to use it in the final product, enlighten me please!