For the first time of its existence as open-source tool, OpenToonz got used in the production of a full-featured anime movie it was announced that it was used as part of the production of director Hiromichi Yonbayashi s latest work Mary and Witch Flower (Studio Ponoc Production) which was released on July 8, 2017.
OpenToonz was used for inking and coloring scanned artwork, produced by traditional cell artists. The coloring process is automatized, which allows to easily maintain color consistency and do inking for multiple frames at once. OpenToonz was also used for special effects and compositing. The Soap Bubble effect was specially developed for this project by Shun Iwasawa (maintainer of official version of OpenToonz).
Official website of the movie: http://www.maryflower.jp/
More info: https://morevnaproject.org/2017/07/22/7620/