The Vector Graphics package provides an SVG file importer as well as generic vector graphics APIs.
The SVG importer follows a subset of the SVG 1.1 specification. Once an SVG file is imported, the vector data is tesselated into triangles and a sprite is generated. This sprite can then be used by the 2D system. The source for the SVG importer can be found in the Editor folder.
The vector graphics APIs can be used to create and manipulate vector constructs directly in code. Read the documentation to get more information. The source for the vector graphics APIs can be found in the VectorGraphics namespace under the Runtime folder.
Unity version 2018.1 or later is required to use the Vector Graphics package.