Adds height:auto to images to prevent vertical stretching.

chrome/common/extensions/docs/config.rb

+# Require any additional compass plugins here.
+
+# Set this to the root of your project when deployed:
+http_path = "/"
+css_dir = "static/css/out"
+sass_dir = "static/sass"
+images_dir = "static/images"
+javascripts_dir = "static/js"
+
+# You can select your preferred output style here (can be overridden via the command line):
+# output_style = :expanded or :nested or :compact or :compressed
+output_style = :compressed
+# To enable relative paths to assets via compass helper functions. Uncomment:
+# relative_assets = true
+
+# To disable debugging comments that display the original location of your selectors. Uncomment:
+line_comments = false
+
+
+# If you prefer the indented syntax, you might want to regenerate this
+# project again passing --syntax sass, or you can uncomment this:
+# preferred_syntax = :sass
+# and then run:
+# sass-convert -R --from scss --to sass sass scss && rm -rf sass && mv scss sass