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MacOS Mojave (/ m oʊ ˈ h ɑː v i, m ə-/ mo-HAH-vee) (version 10.14) is the fifteenth major release of macOS, Apple Inc.' S desktop operating system for Macintosh computers. Mojave was announced at Apple's Worldwide Developers Conference on June 4, 2018, and was released to the public on September 24, 2018. The operating system's name refers to the Mojave Desert and is part of a series of.

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What is Aqua?

To get started building macOS Mojave apps with Xamarin, take a look at the getting started guide for Xamarin.Mac 5.0. Dark mode is a system-wide dark theme in macOS Mojave that uses a dynamic, dark grey color scheme to display user interface elements. It also introduces new accent colors, color effects, and content tint colors to.
Aqua In simple terms, Aqua is what a user experiences when he or she uses Mac OS X. Aqua governs the appearance and behavior of Mac OS X. Aqua is the intuitive, elegant, and gorgeous graphical user interface (GUI) that Mac users interact with on thier Mac use to accomplish tasks.

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In simple terms, Aqua is what a user experiences when he or she uses Mac OS X. Aqua governs the appearance and behavior of Mac OS X. Aqua is the intuitive, elegant, and gorgeous graphical user interface (GUI) that Mac users interact with on thier Mac use to accomplish tasks.

In simple words, Aqua is the interface the end user uses and it's what gives Mac OS X its look and feel. Aqua is all about user experience because it determines how things are presented to the end user, it makes it easy to manage one's work, and it helps one use various applications.

Aqua gives Mac OS X a sleek smooth look, vibrant colors, translucent buttons, clean high-resolution icons, menus, and drop shadows. Aqua also gives Mac OS X stunning visual effects such as transparency, reflections, and animations.
Those new to the Mac will immediately notice the brushed metal look and the bright droplet like buttons on the upper left hand corner of each window. An alternative Aqua theme is called Graphite, a grayscale look and feel.
Aqua's interface controls are more sophisticated than any other operating system thanks to the Quartz Compositor, the advanced graphics processing technology. Quartz Compositor was extended in Mac OS X 10.2 Jaguar to what was termed Quartz Extreme. In OS X 10.4 Tiger, Apple released Quartz Extreme 2D, a more advanced graphics engine. Both Quartz Extreme 2D and Quartz Extreme use OpenGL in conjunction with graphics cards to render windows as textures through the Aqua interface. This allows graphics to be processed faster and takes processing load off of the CPU (processor). The CPU can then concentrate on processing tasks associated with applications and the operating system. Overall, it's a much better way to offload work so your Mac will run faster and more efficiently.
Mac OS X Leopard has brought improvements to Aqua including Coverflow and more refined/consistent window themes. Additionally, running applications are now indicated on the Dock by either a glowing blue ball or a white dot. Note that the Aqua theme has also been included in Microsoft Windows versions of Apple applications such as iTunes, Quicktime, and Safari.
Thanks to Aqua the OS X environment will be relatively familiar to new Mac users because it provides users with features such as a desktop, windows, folders, menus, and keyboard shortcuts. Navigating through Mac OS X is easy and straight forward. Aqua includes the following 'major' components that all inter operate with each other to allow a user to work on a Mac:

Other Aqua features tied to the end user experience include:

Automator
Dashboard
Exposé
Fast User Switching
Inkwell
Speech
Spotlight
System Preferences
VoiceOver

All of these features and technologies have a key role in how your interact and use a Mac. Each release of Mac OS X has not only ushered in advancements to existing Aqua components and features but news ones as well. Mac OS X Tiger (10.4) for example added features such as Dashboard and a new search feature called Spotlight. Mac OS X Panther (10.3) added several features one of them was Exposé.
Aqua also implements consistency. All keyboard shortcuts are the same across applications thanks to the 'command' key shown to the left. Mac keyboard shortcuts use the command key in conjuction with other keys to invoke an action. For example when the Apple key and the P key are pressed at the same time, it tells OS X to perform a Print. Just try it. Open a document, a web page, and an email. Perform the action in each application to see that print is always invoked with that combination.
More advanced users will often bypass Aqua and use the Mac OS X Terminal to do more advanced work within Mac OS X via the command line.
Updates

February 26, 2009 - content modification
July 13, 2008 - content modification, updated image with new command key

Created: 8:50 PM on Nov 27, 2006
By: switchtoamac

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Aquamacs. Finally a GNU Emacs that feels like home.

Get all the flexibility and variety of Emacs - and the comfort of the modern graphical user interface that you're used to from other Mac applications.

Why use Aquamacs instead of a raw GNU Emacs?

Why use Aquamacs instead of the stock Carbon or X11 Emacs on the Mac? Here are some features that Aquamacs has to offer on top of all the advantages that come with Emacs:

Fonts just work, right from the menu: The Mac-standard font (Lucida Grande) is the default for editing text, and the mono-spaced Monaco is used to other modes. These fonts are nicely rendered with antialiasing. Aquamacs offers a range of proportional and mono-spaced fonts to choose from.
Aquamacs has a standard Mac menu with entries where you would expect them, and recently used files are available from the File menu.
Aquamacs gives you all the standard Mac shortcuts like Apple-S, Apple-C, Apple-V - everything that you're used to in addition to the fast, traditional Emacs key bindings.
Aquamacs can organize the files that you're editing in tabs. This preserves screen space but allows you to keep track of all those open files easily. You've probably seen the tabs in Safari, Firefox or the OS X Terminal program.
Aquamacs can open a normal OS X window for each file that is opened - Emacs experts call such windows frames. Finally, Aquamacs makes use of the capabilities of windows on modern graphical user interfaces. This is configurable with a mouse-click - of course, You can switch between the windows (frames) with the 'Window' menu.
Perfect Team-play. Clipboard operations interoperate with other Mac apps. In Aquamacs, if you mark a chunk of text, it will NOT be automatically copied into the clipboard - unlike in GNU Emacs. Just like in any Mac program, you can copy with the Apple-C command, and then replace another region by selecting it and hitting Apple-V (Paste).
Spell-Checking. Aquamacs spell-checks your documents with the OS X spell-checker, supporting more than a hundred languages and system-wide user dictionaries.
Unicode Support. Aquamacs reads and writes files in all Unicode variants. In addition to the input methods provided OS X, the Aquamacs Multilingual Environment defines configuration settings for Chinese, Japanese and Korean on top of the standard Mule.
Printing just works the way you expect it to - with a preview and through the normal printing infrastructure.
Meta Key Management: since Emacs uses an extra modifier key that is not on your keyboard, Aquamacs allows you to use the Option key. But even when using Option for Meta you won't lose the ability to input characters such as [ or with the most common non-English keyboard layouts. Alternatively, you can also use just the right-hand side Command or Option keys for Meta, or many others.
Auto Faces: You can define fonts and colors as defaults for a given editing mode. That means that you can have customized designs for different types of files you're editing. For example, you can easily distinguish LaTeX files on the screen by their beige background color, or use variable-width (proportional) fonts for text modes only, but stick to fixed width, monospaced fonts for editing code.
It's a distribution that comes with the latest goodies pre-installed so you can simply use them and get on with your life. No installation, no setup needed. Here's what's included: AUCTeX for comfortable LaTeX editing, ESS (Emacs speaks Statistics) as an interface to statistics applications such as R, SPLUS etc., nXML for comfortable XML editing. Other, smaller, packages provide support for a range of programming languages and other formalisms. High-quality Java and Lisp support is available via JDEE and SLIME, respectively. These can be installed separately via the MELPA repository.
Aquamacs offers a dedicated manual plus the good old Emacs manual directly via Apple Help environment - you can search both of them quickly with Spotlight and read the documentation comfortably.
A number of extensions to GNU Emacs are contained that would be expected of any Mac program: they're small details that make your life easier. For example, there is a 'Reveal in Finder' function, or another one to open new files in one of many popular modes. When you double-click a file written in Aquamacs, it'll open in Aquamacs. Drag&Drop works perfectly. You get a menu with recently edited files without any configuration. Copy and Paste know about word boundaries, inserting and deleting spaces where sensible (`smart-spacing-mode').
Aquamacs remains extensible, so you can use special syntax coloring setups or enjoy embedded CVS, Git, Bazaar, SVN and Mercurial support, a HTML markup menu and the like. Aquamacs is compatible with GNU Emacs.
Great Support. A community around Aquamacs (and a larger one around Emacs!) will help you out when you don't know how to do X. Just write to the mailing list (but check the manuals first!)

Incomplete List of Keyboard Shortcuts

These shortcuts are in addition to all the Emacs shortcuts you might be used to. hk

Shortcut	Elisp Command	Function
⌘N	new-frame-with-new-scratch	Open a new empty window/frame
⌘O	mac-find-file-other-frame	Open a new window/frame with a file
⇧⌘S	mac-key-save-file-as	Save as (using file panel)
⇧⌘O	mac-key-open-file-other-frame	Find file in another frame (using file panel)
⌘A	mark-whole-buffer	Select all text
⌘V	cua-paste (yank)	Paste text
⌘C	clipboard-kill-ring-save	Copy text
⌘X	clipboard-kill-region	Cut text
⌘S	mac-key-save-file	Save file
⌘L	goto-line	Go to specified line
⌘F	isearch-forward	Search
⌘G	isearch-repeat-forward	Repeat search
⌘W	close-window	Close window
⌘M	iconify-or-deiconify-frame	Minimize window to the Dock
⌘Q	aquamacs-save-buffers-kill-emacs	Save file, exit program
⌘Z	undo	Undo
⇧⌘Z	redo	Redo
⌘;	spellcheck-now	Interactive spell-checking
^;	toggle-pass-option-to-system	Toggle: allow input of special characters with Option key / use Option key as Emacs Meta key

Included Third-Party Packages

Aquamacs 3.x is based on GNU Emacs 24. The following list is incomplete but gives an impression of what comes with Aquamacs.

applescript-mode (FUJIMOTO Hisakuni, Harley Gorrell)
AUCTeX (David Kastrup et al.) LaTeX editing environment
color-theme (Jonadab, Xavier Maillard) Color sets for frames
css-mode (Lawrence Mitchell, Alex Schröder)
ESS (Emacs Speaks Statistics - for R, S and others)
files+/frame+/autofit-frame etc. (Drew Adams) comfortable frame movements etc.
findr (David Bakhash) Breadth-first file-finding facility for (X)Emacs
haskell-mode (Dave Love et al.)
html-helper-mode (Gian Uberto Lauri, Nelson Minar) Great HTML editing mode.
htmlize (Hrvoje Niksic) Export to HTML
javascript-mode (Peter Kruse)
JDEE for Java (Paul Kinnucan)
matlab-mode (Matt Wette, Eric M. Ludlam)
nXML-mode (James Clark et al.)
pager (Mikael Sjödin, David Reitter)
par-align (Bob Weiner) - included but not activated
php-mode (Turadg Aleahmad)
prolog-mode (Stefan D. Bruda)
python-mode (Tim Peters, Barry A. Warsaw)
redo from XEmacs (Kyle E. Jones) Undo/Redo
rails (Dmitry Galisnky, Rezikov Peter)
ruby-mode
SLIME for Lisp (Helmut Eller, Eric Marsden, Luke Gorrie)
Smart-Drag-N-Drop (Seiji Zenitani) (not activated)
ssh (Noah Friedman)
utf-8m (Seiji Zenitani) Asian filenames
wikipedia-mode (Chong Yidong)
and some more.

Aquamacs additionally activates a number of packages that are provided with the default emacs, such as cua-base, ibuffer, recentf. The GNU Emacs code-base is patched. Please see the CVS for the collection of patches and additional source-files.

Configuration: Tips and Tricks

Please refer to the Aquamacs Wiki. If you now some tricks yourself, please contribute them by clicking on 'Edit this page' - no login / password necessary!