// A) You may edit imconfig.h (and not overwrite it when updating imgui, or maintain a patch/branch with your modifications to imconfig.h)
// B) or add configuration directives in your own file and compile with #define IMGUI_USER_CONFIG "myfilename.h"
// Note that options such as IMGUI_API, IM_VEC2_CLASS_EXTRA or ImDrawIdx needs to be defined consistently everywhere you include imgui.h, not only for the imgui*.cpp compilation units.
// C) Many compile-time options have an effect on data structures. They need defined consistently _everywhere_ imgui.h is included,
// not only for the imgui*.cpp compilation units. Defining those options in imconfig.h will ensure they correctly get used everywhere.