たくさんの文字を折り返し。

theme.rb

@preformatted_keep_in_size = false
@syntax_highlighting_keep_in_size = false
include_theme("default")

match("**", PreformattedBlock) do |blocks|
  blocks.prop_set("size", @xx_small_font_size)
  blocks.wrap_mode = :char
  blocks.margin_right = screen_x(7)
end

match("**", SyntaxHighlightingBlock) do |blocks|
  blocks.prop_set("size", @xx_small_font_size)
  blocks.wrap_mode = :char
  blocks.margin_right = screen_x(7)
end