diagram {
  A [label="B", color="red"];
  B [label="double quoted"];
  C [label='single quoted', color = 'red'];
  D [label="'\"double\" quoted'", color = 'red'];
  E [label='"\'single\' quoted"', color = 'red', numbered = "1"];
  F [textcolor = red];
  G [stacked];
  H [fontsize = 16];
  I [linecolor = red];
  J [label="Hello", label_orientation=vertical];
  K [background = "src/blockdiag/tests/diagrams/debian-logo-256color-palettealpha.png"];
}
