Function isUsableFont

App.tsx:141–143

(font: PreviewSkiaFont | undefined)

  const fontsBySize = new Map<number, PreviewSkiaFont | undefined>();
  const fontFamilies = previewSkiaFontFamilies;
  const isUsableFont = (font: PreviewSkiaFont | undefined) => {
    return Boolean(font);
  };

  return (options = {}) => {
    const fontSize = options.fontSize ?? 12;