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  RenderView at (0,0) size 800x600
layer at (0,0) size 800x600
  RenderBlock {HTML} at (0,0) size 800x600
    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {P} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 326x19
          text run at (0,0) width 326: "This tests that attachments have a custom renderer."
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        RenderAttachment {ATTACHMENT} at (0,0) size 160x119 [color=#007AFF]
        RenderText {#text} at (0,0) size 0x0