Site is in early stage of development. Right now we are updating panels documentation.
Here I want to recommend you some VectorMotion channels I know to help you dive-in quicker.
Contains animation VectorMotion tutorials and Synfig Studio ones, while that's not all it has.
Learning sources may have different terminology regarding tools, panels and etc. While because of the lack of official documentation we have chosen terms for them by ourselves (referring to other software too).