A nine-minute concept video reimagining Windows with Apple’s Liquid Glass aesthetic has ignited a firestorm among enthusiasts, but the gulf between a glossy mockup and a shippable operating system remains wider than a translucent taskbar. AR 4789’s “Windows 12.2: The Next Evolution” video, dissected by outlets from Windows Central to MakeUseOf, presents a seductive vision—glassy, fluid, and coherent—that has fans debating whether Microsoft should abandon its cautious visual pacing and leap toward a liquified future. The answer is anything but simple.
The concept arrives at a moment when Apple’s 2025 WWDC introduced Liquid Glass, a translucent, refractive design language that reshapes UI accents, wallpapers, and system chrome across iOS, macOS, and watchOS. Independently, fan designer Abdi—known on YouTube as AR 4789—published a mockup that imagines Windows adopting a similar visual vocabulary: layered translucency, softened motion, containerized desktop layouts, and a more cohesive Start and Settings experience. The video’s polish is undeniable, but as MakeUseOf’s Ben Stegner noted after a hands-on walkthrough, “This demo doesn’t show any of the old-school tools like Control Panel or Disk Management; those would presumably not get the Liquid Glass treatment.” That one observation encapsulates the central tension between a beautiful prototype and a functional operating system.
First Impressions: What the Concept Gets Right
The concept nails several emotional goals that matter deeply for desktop UX. Visual cohesion stands out first—the entire UI looks designed in one sitting rather than accreted over decades. Consistent corner radii, uniform shadows, and matched translucency create the feeling of a single visual system, something Windows 11 has only partially achieved. Polished motion design, with smooth transitions and subtle attention cues, makes simple interactions feel premium. The video’s install flow and theme switches emphasize motion that communicates state clearly, a stark contrast to the sometimes jarring animations in current Windows.
Choice and personalization are foregrounded beautifully. The mockup offers one-click theme customization that changes everything from notifications to File Explorer to icons—a level of holistic theming that Windows 11’s scattered personalization menus can’t match. Taskbar styles let users switch between compact, mini, and Classic (Windows 7–like) looks instantly, and per-virtual-desktop themes help distinguish workspaces at a glance. The concept also introduces containerized desktops, grouping icons, widgets, and apps in labeled containers, which reduces perceived clutter and can improve discoverability on busy desktops. MakeUseOf’s walkthrough praised the Start Menu for channeling Windows 10’s familiar All Programs list while modernizing tile treatment, and the address bar in Settings was noted as a potential navigation win. Dragging widgets directly onto the desktop—a long-requested capability absent from Windows 11—adds functional sparkle.
These wins matter because modern users evaluate an OS not just on raw features but on feel. A platform that communicates its affordances through design choices reduces cognitive friction and can make everyday tasks feel smoother. As the original review noted, “The one-click theme customization is neat. Being able to apply a Windows 7 style that easily would be a fun way to change your desktop up.”
The Technical Reality: Why the Mockup Isn’t a Blueprint
Concept videos are free to ignore real-world constraints. Shipable operating systems are not. Windows carries a vast catalogue of legacy components—Control Panel applets, UAC secure desktop, older third-party Shell extensions, and vendor-supplied OEM dialogs—that aren’t trivially themeable. Bringing them into a single visual system requires refactoring or replacing decades-old code paths. Microsoft’s staged updates in Insider previews tell this story: visual changes in Release Preview build 26100.5061 (KB5064081) from August 2025 are rolled out selectively because a wholesale flip would create unacceptable regressions. The concept video, as MakeUseOf noted, conveniently ignores the dusty corners of the OS where the modern veneer peels away.
Accessibility and compliance impose hard constraints. Color, contrast, and focus indicators must meet WCAG and assistive-tech expectations. Translucency and blurred backgrounds reduce contrast and can obscure hit targets or readable text if not tuned carefully. Real accessibility validation requires automated testing, screen-reader verification, and enterprise pilot programs—none of which concept videos address. Performance and power tradeoffs are equally messy. Real-time refraction and layered blur are GPU-accelerated operations that look fluid on high-end machines but can introduce lag and battery drain on older or integrated GPUs. A production design must include fallback materials or adjustable fidelity for low-power devices, something the mockup’s blanket translucency never considers.
Enterprise management adds another layer of rigor. Organizations rely on stable UI element placement for automation, RPA, and monitoring tools. Large visual shifts can break scripts and require updates to management templates, GPOs, and ADMX files. Microsoft’s conservative, telemetry-driven rollout exists to mitigate these operational risks. Security dialog clarity is non-negotiable: prompts must communicate risk unambiguously. Styling that softens contrast or uses nuanced translucency could inadvertently reduce the perceived severity of privilege elevation or malware warnings unless explicit design constraints are enforced. In short, what looks like a pure aesthetic choice in a video can have cascading technical, usability, and enterprise implications that demand cross-discipline engineering work.
Where the Concept Stumbles: Nostalgia Traps and Usability Hiccups
The design references Windows Vista/Aero and Apple Liquid Glass simultaneously, a nostalgia mashup that can polarize. Visual callbacks that remind users of older, controversial OS releases risk reviving negative memories. The goal should be modern clarity, not a stylistic blend that feels derivative. MakeUseOf’s Stegner pointed out practical missteps: “The circle for maximizing windows instead of the classic square is different. It’s not good or bad, but a change that stood out. What’s not great is how the icon doesn’t change when the window is already maximized, which is confusing.” Small details like icon state changes are fundamental UI affordances; getting them wrong creates real usability friction. The mockup also showed typos and grammar issues—harmless in a concept, but a reminder that production-ready localization requires rigorous attention to language and string length. Over-reliance on motion, while visually appealing, must have accessible low-motion alternatives for users with vestibular sensitivity or on low-power devices—a consideration entirely absent from the video.
What Microsoft Would Need to Make a Liquid-Glass-Style Windows Real
Turning a concept into production requires concrete engineering steps, not just a mood board. A realistic roadmap would include prioritizing WinUI migration to move legacy controls into a single theming layer so theme tokens and contrast rules propagate uniformly. Tiered rendering fidelity must implement adaptive translucency that degrades gracefully based on GPU capability and battery state. A comprehensive accessibility audit would validate contrast, focus outlines, keyboard navigation, and screen-reader behavior across all new visuals. Enterprise deployment controls need ADMX templates and management tooling to let admins control or block visual changes during pilot rollouts. Performance telemetry, using staged rollouts to measure frame rates, UI latencies, and power impact before wider enablement, is essential. Finally, developer guidance and tokens would publish clear UI patterns that third-party app developers can adopt to look native without breaking behavior. These aren’t sexy items in a concept reel, but they are the exact pieces engineering teams must deliver to make any major visual overhaul safe in production.
How Enthusiasts Can Approximate the Look—and Why Caution is Key
If the aesthetic appeals, users can experiment today, but with caveats. Supported personalization tools—built-in theme packs, Dynamic Lock Screen options, and Safe Mode personalization—keep the system within supported paths. Third-party themers like StartAllBack, various icon packs, or custom explorer shells can mimic the look but often break across updates and can interfere with accessibility or security features. Testing on non-production hardware is mandatory if using registry hacks or unsupported mods. Microsoft’s Insider program remains the safest way to preview platform work; the Release Preview build 26100.5061 and follow-ups exemplify how Microsoft enables visual changes gradually. Joining Insider channels with backups and piloting appropriately is the responsible enthusiast’s path.
A Practical Critique: What to Keep, What to Reconsider
The concept’s best ideas are the simplest. Themed containers for desktop organization reduce cognitive load and could be implemented as an optional shell enhancement. One-click theme packs—shipping curated, reversible themes with full token swaps—are user-centric and relatively low risk. Improved Settings navigation, like an address bar, are quick wins. Systemwide heavy translucency, however, should be opt-in or adaptive for high-end hardware, not a forced default. Opaque security visuals must never soften; clarity trumps aesthetics when privilege elevation is at stake. Non-standard control metaphors—like unfamiliar maximize icons—should be preserved unless there is a demonstrable usability improvement and a migration period.
Beyond Cosmetics: AI, Design, and the Future of Windows UX
Microsoft is moving toward an AI-centric user experience with Copilot and workspace awareness. A successful visual refresh should enable, not distract from, these new usage models. Visual layers can surface contextual AI results without stealing focus from primary tasks. Containerized desktops could become AI context sets—group windows, settings, and tools relevant to a single task and let AI recall them later. Motion and translucency must be functional, reinforcing hierarchy rather than merely decorating. The strategic question is not whether Windows should look like Liquid Glass; it’s whether a future Windows can deliver clearer, faster, and safer workflows while modernizing its visuals. That balance is precisely what enterprises, developers, and users will judge.
Conclusion: Borrow the Ideas, Demand the Engineering
AR 4789’s Windows 12.2 concept is a compelling thought experiment that shows how far desktop design can go when color, translucency, and motion are treated coherently. Its biggest value is in its ideas—holistic theme packs, cleaner Start menu affordances, containerized desktops, and widget placement flexibility. But turning that mood into a shipping Windows product demands a fusion of art and engineering: massive WinUI migration, accessibility verification, enterprise controls, performance fallbacks, and clear security boundaries. Microsoft’s current approach of controlled, telemetry-driven rollouts is the responsible way to evolve the shell; the same discipline must govern any Liquid-Glass-style ambitions. For enthusiasts and designers, the takeaway is simple: borrow the good ideas, examine the tradeoffs diligently, and demand that any visual refresh comes with enterprise readiness, accessibility guarantees, and adjustable fidelity. A beautiful OS must also be reliable, secure, and inclusive—otherwise the shine fades quickly.