Synfig Studio is a two-dimensional animation creation tool that uses both vector and raster graphics, eliminating the need to create frame-by-frame animations and allowing us to work faster and with fewer resources.
Thanks to the fact that all the elements created from the program itself are based on vectors, the only pixelation that we will suffer when changing resolutions or sizes will be in the images imported directly into the program, something that we can do quite easily.
The program supports several different types of layers: geometric, gradient, filter, transform, and many others. We can manipulate all of them from the program’s interface, which, yes, will require certain experience on our part to be used with all its possibilities.
Synfig Studio is a very complete application that, luckily, has a complete manual online from its author’s website. Thanks to it, anyone can, with a little patience, of course, create their own animations.