XIVConfigUI is a ui, localization, config library in Imgui designed to work within Dlamaud Plugins.
Add XIVConfigUI as a submodule to your project:
git submodule add https://github.com/ArchiDog1998/XIVConfigUI
Add it to your plugin's CSProj file:
<ItemGroup>
<ProjectReference Include="..\XIVConfigUI\XIVConfigUI\XIVConfigUI.csproj" />
</ItemGroup>
Then, in the entry point of your plugin:
XIVConfigUIMain.Init(pluginInterface, "%NAME%");
where pluginInterface is a DalamudPluginInterface.
Don't forget to dispose it!