# DWMBlurGlass: Custom Title Bar Blur for Windows 10 and 11 > DWMBlurGlass patches the Windows compositor to give every title bar a Blur, Aero, Acrylic or Mica effect. It is aimed at Windows 10 users who cannot get Mica natively, and at Windows 11 users who want control the system does not expose. **Maplespe/DWMBlurGlass** — Add custom effect to global system title bar, support win10 and win11. - Repository: https://github.com/Maplespe/DWMBlurGlass - Stars: 4,592 · Forks: 181 - Language: C++ - License: LGPL-3.0 - Published: 2026-09-23 · Updated: 2026-09-23 · Language: en - Canonical page: https://hysenlabs.com/projects/maplespe-dwmblurglass ## What DWMBlurGlass actually changes, and for whom Windows draws title bars through the Desktop Window Manager. On Windows 10 the compositor gives you a flat colour; on Windows 11 it gives you Mica, but only on the builds and surfaces Microsoft chose, and with almost no user control over radius, tint or text colour. DWMBlurGlass targets that gap. The README states it adds a custom effect to the global system title bar and supports Windows 10 and Windows 11, with compatibility as low as Windows 10 2004 and as high as the latest Windows 11. The audience is narrow and specific: people on Windows 10 who want a glass title bar at all, and people on Windows 11 who want to tune one. The project also restores Windows 7 style title bar button height and button glow, and can enable blur for programs that still call the old DwmEnableBlurBehindWindow API. That last item matters more than it sounds, because legacy applications otherwise stay opaque no matter what the rest of the desktop does. ## Inside the compositor: CustomBlur, AccentBlur and SystemBackdrop The README is explicit that the project reverse-analyzed DWM and created a custom blur method, and that it does not modify the rendering logic of the application itself. That distinction is the whole design. Instead of asking each application to draw its own backdrop, DWMBlurGlass changes what the compositor does with the title bar region, so third-party programs inherit the effect without cooperating. Three blurring methods are offered: CustomBlur, AccentBlur and SystemBackdrop. SystemBackdrop is the odd one out. According to the README it uses the system's publicly available interfaces and produces the same effect as MicaForEveryone, which means the reverse-engineered path is not the only path. The material effects themselves are recipes rather than single switches. Acrylic is described as background, blur, exclusion blend, saturation, colour or tint overlay and noise; Mica as blurred wallpaper, saturation and tint overlay; Aero as the Windows 7 glass effect with saturation and exposure changes when a window is inactive. MicaAlt is not a separate effect at all. The README says it is Mica with a grayish tone, achieved by modifying the blend colour yourself. That is a fair design decision, and it also means there is no MicaAlt preset to click. ## Installing DWMBlurGlass and applying a first effect There is no package manager path here. The README instructs you to download the compiled program archive from the Releases page and unzip it to a location such as C:\Program Files. The repository itself is a Visual Studio solution (DWMBlurGlass.sln) with DWMBlurGlass/, DWMBlurGlassExt/ and Common/ directories, so building from source is possible but the documented route is the release archive. After unzipping, you run the GUI executable and click Install. That single button is the whole setup: ```bash DWMBlurGlass.exe ``` The README warns that if nothing happens when you click Install, you need to open the Symbols page and click Download. Symbols are not bundled. You may receive a notification about missing symbols in the future, especially after system updates, so this is a recurring step rather than a one-time one. Once symbols are in place, install again and the effect applies to the global title bar. The README does not list command line flags for DWMBlurGlass.exe, so the GUI is the interface. Uninstalling is the same shape in reverse: click Uninstall, then delete the relevant files. If you want to contribute a translation, the repository keeps Languagefiles/ with files such as en-US.xml, and the finished file goes into the data\lang directory next to DWMBlurGlass.exe. The README notes the locale field on the second line must match the filename without the .xml extension. ## Where it breaks: symbols, updates and the wrong build The most common failure mode is documented rather than hidden. Symbols must be downloaded before installation does anything, and the README states you may be notified about missing symbols again after system updates. That means the tool has a maintenance rhythm tied to Windows patching, not to its own release cycle. It also means a machine that cannot reach the symbol source is a machine where DWMBlurGlass installs but does nothing. The second constraint is version coverage. The README notes that some blurring methods are not supported in Windows Insider versions, so a preview build can lose functionality that works on stable. The third is coexistence. The README does not recommend running DWMBlurGlass with MicaForEveryone and does not guarantee compatibility with it. It does state compatibility with ExplorerBlurMica and TranslucentFlyouts, with a caveat that even though DWMBlurGlass is compatible with TF, EBMv2 is not fully compatible with TFv2. That is a compatibility matrix you have to read carefully rather than assume. Finally, the distribution warning is part of the security story. The README says the project found someone impersonating it and posting a build with a malicious code implant, states there is no official Discord, and lists only GitHub, Bilibili and winmoes as distribution points. If you are evaluating whether DWMBlurGlass is safe, that warning is the relevant fact: the risk described is a counterfeit binary, not the project's own code path. ## DWMBlurGlass versus MicaForEveryone The README draws this comparison itself, which is unusual and useful. MicaForEveryone works by changing how applications render their backdrops, while DWMBlurGlass does not modify the rendering logic of the application at all and instead changes the compositor's behaviour. The project claims that difference maximizes compatibility with third-party programs. The trade-off is that DWMBlurGlass is doing something the operating system was not designed to expose, which is why it needs symbols and why system updates can break it. MicaForEveryone stays closer to supported interfaces. The two also overlap at one point: if you select SystemBackdrop as your blur method, the README says the effect is the same as MicaForEveryone, because that path uses the system's public interfaces. So the choice is not purely project against project. It is which blur method you pick inside DWMBlurGlass, and only CustomBlur and AccentBlur carry the reverse-engineered behaviour that distinguishes it. If you want Mica with a per-app rule list, MicaForEveryone's approach fits better. If you want Windows 10 to have a glass title bar at all, or you want to tune radius and tint globally, DWMBlurGlass is the one that reaches that. ## Licence and the cost of keeping it running DWMBlurGlass is licensed under LGPL-3.0; the README links to COPYING.LESSER and the repository carries LICENSE.txt. For an end user running the release binary, that is a free-of-charge desktop tool. For anyone modifying the C++ sources and redistributing, the LGPL carries obligations around source availability and relinking that are worth reading in the licence text itself rather than summarising here. This is not legal advice, and the licence file is the authority. Upgrade cost is the part that deserves attention before you commit. The last push to the repository was on 2026-03-26, and the most recent release listed is 2.3.2b3 from 2025-12-19, with 2.3.2b2 and 2.3.2 before it. The README states that new versions for testing are pushed to the test branch first rather than releasing binaries in advance, so the release channel lags the source. Practically, you are tracking two things: the project's releases, and Windows updates that invalidate the symbols you downloaded. Neither is automatic, and neither is documented as a background service. Budget for a manual re-check after each major Windows patch. ## Conclusion DWMBlurGlass suits Windows 10 users stuck on a flat title bar and Windows 11 users who want blur parameters the system does not expose, and it is the wrong tool for anyone unwilling to download symbols or to reinstall after a Windows update. Before adopting it, verify three things on your own machine: that the Symbols page reports a successful download, that your blur method (CustomBlur, AccentBlur or SystemBackdrop) is supported on your Windows build, and that the Uninstall button in DWMBlurGlass.exe removes the injected component. If the Symbols download fails, nothing else in the tool works. ## FAQ ### Is DWMBlurGlass safe? The README states the project discovered someone impersonating it and distributing DWMBlurGlass with a malicious code implant, and it asks users not to download from unofficial addresses. It lists GitHub, Bilibili and winmoes as the only distribution points and states there is no official Discord. The risk the project describes is a counterfeit binary rather than its own code. ### How do I install DWMBlurGlass? Download the compiled archive from the Releases page and unzip it to a location such as C:\Program Files, then run DWMBlurGlass.exe and click Install. If nothing happens, open the Symbols page and click Download first, then install again. ### Is DWMBlurGlass free to use? The README states the project uses the LGPL-3.0 licence and links to COPYING.LESSER, with LICENSE.txt in the repository. The release archive is distributed from the project's GitHub Releases page at no stated cost. ### What does DWMBlurGlass do? It adds a custom effect to the global system title bar on Windows 10 and Windows 11. The README lists Blur, Aero, Acrylic and Mica (Windows 11 only) effects, plus adjustable blur radius, blend colours and title bar text colour. ### How does DWMBlurGlass compare with MicaForEveryone? The README says DWMBlurGlass does not modify the rendering logic of the application itself, which it describes as completely different from MicaForEveryone's logic. It also states that if you choose the SystemBackdrop blur method, that path uses the system's public interfaces and has the same effect as MicaForEveryone. ### Can I use the Liquid Glass effect in Windows 11 with DWMBlurGlass? The README does not document a Liquid Glass effect. The effects it lists are Blur, Aero, Acrylic, Mica and MicaAlt, with Mica available on Windows 11 only. ## Sources - [Issues](https://github.com/Maplespe/DWMBlurGlass/issues) - [License: LGPL-3.0](https://github.com/Maplespe/DWMBlurGlass/blob/master/LICENSE) - [Maplespe/DWMBlurGlass on GitHub](https://github.com/Maplespe/DWMBlurGlass) - [README](https://github.com/Maplespe/DWMBlurGlass/blob/master/README.md) - [Releases](https://github.com/Maplespe/DWMBlurGlass/releases) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/maplespe-dwmblurglass