Folder contains libraries used by the binding. Provide 'imgui.library.path' VM option to the folder with one of those file (ex: -Dimgui.library.path=./some/folder). In the same way you can use 'java.library.path' option instead. By default binding expects 'imgui-java64' file name. You can change that by using 'imgui.library.name' VM option (ex: -Dimgui.library.name=custom-lib-name). - imgui-java64.dll << Windows - libimgui-java64.so << Linux - libimgui-java64.dylib << MacOS Freetype folder contains same libraries, but with Freetype support.