Orange Line Beam - narrow von jadoes

This theme is a simple theme that takes into account the Firefox browser's menus and tabs for easy viewing. It is based on the default Light theme. This theme was inspired by the "White orange" theme by Leonardo Molina.
Acknowledgement to Leonardo.

In addition, I also created the following themes:
https://addons.mozilla.org/ja/firefox/addon/orange-line-beam-broad/