ShapeSize
ShapeSize =
number| [number,number]
Defined in: particles/src/shapes.ts:23
The generated texture’s size in pixels: one value for a square, or an
explicit width and height. At the default scale: 1 this is also the size a
particle covers on screen. Every distinct size generates and caches its own
texture, so keep to a few and vary per-particle size with scale.