Microsoft Internally Worked on a Mac OS X Aqua Inspired Windows XP Theme - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Microsoft Internally Worked on a Mac OS X Aqua Inspired Windows XP Theme

Microsoft tested a Windows XP theme that closely resembled Mac OS X's Aqua GUI, reports The Verge.

twarren windowsxpsqualeak xpaquadbuttons 1

A recent Windows XP source code leak has revealed various unreleased themes that Microsoft developed in 2000, at a time when Microsoft was in heated competition with Apple regarding desktop operating systems.

One of the themes, codenamed "Candy," mirrors the design of Apple's Aqua interface, which was first introduced at the Macworld Conference & Expo in 2000. Aqua was an iconic Apple design and gave a sense of depth through the use of shadow and translucency, metallic textures, and rounded liquid-like assets.

twarren windowsxpsqualeak

The theme was described as a "Whistler skin with eye candy," with "Whistler" being the codename for Windows XP, and was marked as "for internal use only." Though the theme was never finished, fundamental aspects such as the Windows Start button and various UI elements were a close match for Aqua.

Most striking is the replication of Mac OS X's rounded water-like buttons. Windows developers reportedly used the theme as a placeholder to build the theme engine for Windows XP.

The theme was ultimately rejected in favor of the blue and green Luna theme for the final version of Windows XP released in 2001. The source code leak reveals another instance of the influence of the Mac on Windows behind the scenes.

Popular Stories

iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching Later This Year With These 12 New Features

Wednesday March 18, 2026 7:39 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another six months or so, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component...
imac video apple feature

Apple Released Yet Another New Product Today

Friday March 20, 2026 2:39 pm PDT by
Apple has unveiled a whopping nine new products so far this March, including an iPhone 17e, iPad Air models with the M4 chip, MacBook Air models with the M5 chip, MacBook Pro models with M5 Pro and M5 Max chips, the all-new MacBook Neo, an updated Studio Display, a higher-end Studio Display XDR, AirPods Max 2, and now the Nike Powerbeats Pro 2. iPhone 17e features the same overall design as...
ios 26 4 pastel

iOS 26.4: Top 10 New Features Coming to Your iPhone

Friday March 20, 2026 2:44 pm PDT by
iOS 26.4 isn't the major update with new Siri features that we hoped for, but there are some useful quality of life improvements, and a little bit of fun with an AI playlist generator and new emoji characters. Playlist Playground - Apple Music has a Playlist Playground option that lets you generate playlists from text-based descriptions. You can include moods, feelings, activities, or...

Top Rated Comments

macsplusmacs Avatar
72 months ago
Truly "Redmond, start your copiers" was both bang on truthful and behind the curve.
Score: 44 Votes (Like | Disagree)
AngerDanger Avatar
72 months ago
I remember spending hours as a teen, theming the family PC to look like OS X.

Never knew Microsoft had already done so much work for me.
Score: 37 Votes (Like | Disagree)
quaresma Avatar
72 months ago

Can nobody do anything without Apple doing it first? Jeez... the creative bankruptcy of other tech companies is palpable and the nerve with which they blatantly steal the IP of others is criminal.
yes... Apple is the inventor of all tech in the world. /s
Score: 32 Votes (Like | Disagree)
maflynn Avatar
72 months ago

do anything without Apple doing it first? Jeez
I know seriously, it's not like Apple visited Xerox and copied the idea of the mouse, gui and what not. They would never do that

And then inventing the MP3 player :oops:
Score: 22 Votes (Like | Disagree)
sracer Avatar
72 months ago

Can nobody do anything without Apple doing it first? Jeez... the creative bankruptcy of other tech companies is palpable and the nerve with which they blatantly steal the IP of others is criminal.
It was an experimental theme and not released to the public. As for Apple doing it first, Apple rarely does things first. They didn't produce the first laptop, mp3 player, nor smartphone, nor tablet. Their offerings weren't even the first successful ones.
Score: 22 Votes (Like | Disagree)
72 months ago

Can nobody do anything without Apple doing it first? Jeez... the creative bankruptcy of other tech companies is palpable and the nerve with which they blatantly steal the IP of others is criminal.
Apple almost never does anything first. This is a well understood and well documented tenant of their business model. Sheesh.
Score: 21 Votes (Like | Disagree)
Related Apple News: Airpods 4 Release Date | Magsafe | Best Ipad To Buy | Iphone 16 Rumors Roundup | Opinion