require 'rvg/rvg'

Magick::RVG.dpi = 90

rvg = Magick::RVG.new(10.cm, 3.cm).viewbox(0, 0, 1000, 300) do |canvas|
  canvas.background_fill = 'white'
  canvas.desc = 'Example tspan01 - using tspan to change visual attributes'
  canvas.g.styles(font_family: 'Verdana', font_size: 45) do |grp|
    grp.text(200, 150, 'You are').styles(fill: 'blue') do |txt|
      txt.tspan(' not').styles(font_weight: 'bold', fill: 'red')
      txt.tspan(' a banana')
    end
  end
  canvas.rect(997, 297).styles(fill: 'none', stroke: 'blue')
end

rvg.draw.write('tspan01.gif')