Give the user a layout scaffolding.

lib/jekyll/theme_builder.rb

@@ -12,6 +12,7 @@ class Jekyll::ThemeBuilder
 
   def create!
     create_directories
+    create_starter_files
     create_gemspec
     create_accessories
     create_example_site
@@ -58,6 +59,12 @@ class Jekyll::ThemeBuilder
     mkdir_p(%w(example example/_posts))
   end
 
+  def create_starter_files
+    %w(page post default).each do |layout|
+      write_file("_layouts/#{layout}.html", template("_layouts/#{layout}.html"))
+    end
+  end
+
   def create_gemspec
     write_file("Gemfile", template("Gemfile"))
     write_file("#{name}.gemspec", template("theme.gemspec"))

lib/theme_template/example/_post.md

@@ -1,6 +1,5 @@
 ---
-# Specify a layout from your theme!
-# This will be the layout users specify for their posts.
+layout: post
 ---
 
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lib/theme_template/example/index.html

@@ -1,5 +1,5 @@
 ---
-# Specify a layout from your theme!
+layout: page
 ---
 
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