# File lib/pdf/writer.rb, line 2677
2677:       def [](pdf, info)
2678:         @foreground ||= DEFAULT_FOREGROUND
2679:         @background ||= DEFAULT_BACKGROUND
2680: 
2681:         desc  = info[:descender].abs
2682:         xpos  = info[:x] - (desc * 2.00)
2683:         ypos  = info[:y] + (desc * 1.05)
2684: 
2685:         ss = StrokeStyle.new(desc)
2686:         ss.cap  = :butt
2687:         ss.join = :miter
2688:         pdf.stroke_style! ss
2689:         pdf.stroke_color @foreground
2690:         pdf.circle_at(xpos, ypos, 1).stroke
2691:         pdf.stroke_color @background
2692:         pdf.circle_at(xpos, ypos, 0.5).stroke
2693:       end