[PaulDavisThe1st]

> It's basically standard when prototyping any sort of graphical application.

while imgui is super-cool, this is wildly overstating its reach or significance. It also embodies a very particular style of GUI programming (so-called "immediate mode", hence the "Im" part of the name) that is very well suited to some sorts of GUI applications and less so for others. The other style, often called "deferred mode", is the one used by most native toolkits, and it is very far from trivial to just switch an application between the two.

So, while there are plenty of good reasons to consider imgui for a graphical application, there are also many reasons why you would not want to use it too. It is very far from "standard" in terms of prototyping such apps.