This is good argument, but also it's apples to oranges. You list GTK/Unity/informs where, I suppose, you refer to their GUI editors that output xml etc, and cod

This is good argument, but also it's apples to oranges. You list GTK/Unity/informs where, I suppose, you refer to their GUI editors that output xml etc, and code just ties everything up, but you can drive all three with code only, and again end up placing every component by hand. Replace your prntln with " ImGui::Text("hello, world");" and you have GUI window on the screen.