anchor: love.font.newImageRasterizer
  Creates a new Image Rasterizer.
  rasterizer = love.font.newImageRasterizer( imageData, glyphs, extraSpacing, dpiscale )
  imageData ImageData Font image data.
  glyphs string String containing font glyphs.
  extraSpacing (0) number Font extra spacing.
  dpiscale (1) number Font DPI scale.
  rasterizer Rasterizer The rasterizer.