https://github.com/mimaraka/aviutl-plugin-curve_editorhttps://github.com/mimaraka/aviutl-plugin-curve_editorhttps://github.com/mimaraka/aviutl-plugin-curve_editorhttps://github.com/mimaraka/aviutl-plugin-curve_editorhttps://github.com/mimaraka/aviutl-plugin-curve_editor
http://www.nicovideo.jp/watch/sm39729112
