鳴謝

Optically 所用的軟件與圖像素材

Sparkle

Optically 使用 Sparkle 來檢查和安裝更新。 Sparkle 以 MIT 授權條款發佈，按該授權的要求，全文轉載於下。

Copyright (c) 2006-2013 Andy Matuschak.
Copyright (c) 2009-2013 Elgato Systems GmbH.
Copyright (c) 2011-2014 Kornel Lesinski.
Copyright (c) 2015-2017 Mayur Pawashe.
Copyright (c) 2014 C.W. Betts.
Copyright (c) 2014 Petroules Corporation.
Copyright (c) 2014 Big Nerd Ranch.
All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

EXTERNAL LICENSES

bspatch.c and bsdiff.c, from bsdiff 4.3 <http://www.daemonology.net/bsdiff/>:
Copyright (c) 2003-2005 Colin Percival.

sais.c and sais.h, from sais-lite (2010/08/07) <https://sites.google.com/site/yuta256/sais>:
Copyright (c) 2008-2010 Yuta Mori.

圖像素材

Optically 標誌和應用程式圖示是 Flash Media Solutions, Inc. 的原創作品，以 Adobe Illustrator 繪製。 它的每一種呈現 — App 圖示、選單列圖形、這一頁頂部的標誌 — 都是由那一個原始檔案產生出來的。

主頁上的照片是一部放在書枱上的 Sonos Ray。 Sonos 的硬件在該處只是以一般編輯內容的形式出現；本網站和 App 的任何地方都沒有使用 Sonos 的圖像、照片或文件。