The framework defines the following custom types:

UImGui_FVector2/FVector2 - 2D float vector
UImGui_FVector/FVector - 3D float vector
UImGui_FVector4/FVector4 - 4D float vector
UImGui_String/String - C string a.k.a. const char*
FString - C++ string, similar to or the same as std::string

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