Mandatory for any SketchUp user who relies on ThomThom’s plugins; invisible when working correctly; indispensable when debugging.
1. Overview & Purpose TT_Lib² (pronounced "Tee Tee Lib Squared") is a shared runtime library developed by SketchUp extension author ThomThom . It is not a standalone tool with visible UI elements; rather, it is a dependency framework required by almost all of ThomThom’s more advanced plugins (e.g., CleanUp³ , QuadFace Tools , Vertex Tools , CLF Shape Bender ). tt_lib2 sketchup plugin