手塚プロダクション
In 2007, Tezuka Productions began a multi-year project to digitize and color all of Tezuka's published manga series, comprising over 150,000 pages. Tezuka's former personal assistants reproduced the color charts that they originally used for all-color pieces while Tezuka was still producing series, in order to ensure that the new coloring process remained faithful to the colors used in Tezuka's time.