The solder covered (tinned) copper areas you are asking about are the Pads of a PCB Footprint or Package. You can specify pads of almost any shape and size in EasyEDA. Please see the Tutorial: [https://docs.easyeda.com/en/Introduction/Introduction-to-EasyEDA/index.html](https://docs.easyeda.com/en/Introduction/Introduction-to-EasyEDA/index.html) and in particular: [https://docs.easyeda.com/en/PCBLib/PCBLib-Create/index.html](https://docs.easyeda.com/en/PCBLib/PCBLib-Create/index.html) See also: [https://easyeda\.com/andyfierman/Elements\_of\_a\_simple\_PCB\-e42c7b2a4e17449f821a97d04806aeeb](https://easyeda.com/andyfierman/Elements_of_a_simple_PCB-e42c7b2a4e17449f821a97d04806aeeb)

Thanks a lot. It really helped.

Hi Are you want to add solder mask for the track? you can check [https://docs.easyeda.com/en/FAQ/Editor/index.html#How-to-add-solder-mask](https://docs.easyeda.com/en/FAQ/Editor/index.html#How-to-add-solder-mask)