loadFont(name: string, src: string | BinaryData, opt?: LoadFontOpt): Asset<FontData>
 Load a font (any format supported by the browser, e.g. ttf, otf, woff).
paramname- The asset name.
// load a font from a .ttf file
loadFont("frogblock", "fonts/frogblock.ttf");
returnsThe asset data.
sincev3000.0
groupAssets