Developmental Animation
With the resurgence of 2D animation and its booming popularity, free and proprietary software packages have become widely available for amateurs and professional animators. However, the principal issue with 2D animation is labor requirements. With advanced software like RETAS and Adobe After Effects, coloring and compositing can be easily done with significantly less time.
Additional software is being developed to aid and speed up the process of digital 2D animation, specifically in the area of automatic coloring and in-betweening.
Read more about this topic: 2D Computer Graphics