v3.0
* Major user interface update.
* Improve Pencil tool performance for large designs.
* Fix double precision backstitch drawing.
* Fix crash when pressing on design scale if design is empty.
v2.5 [Nov 16, 2020]
* Add double precision to backstitch text and backstitch drawing.
* Add 3 more actions to File menu.
* Improve backstitches import from xsd.
