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Penumbra 10 - Windows 10 visual style

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By Scope10   |   
Supported versions:

- Version 2004
- Version 1909
- Version 1903

Might not work on older versions

This visual style is made to have neutral colors.
The music player in the preview image is AIMP with Ladient 2 ( )

Before you install

- Check if you have the right version of Windows 10 (See…)
- Make a restore point (!)
- Install Open Sans (included in the download in the 'Font' folder)
- Uninstall any patch if you have already installed one (UxStyle, UltraUXThemePatcher) (!)

How to install

1. Install UltraUXThemePatcher and reboot after install:… 

2. Install Old New Explorer (ONE):…
My recommended settings:

3. Copy the content of 'Visual style' to 'C:\Windows\Resources\Themes' (

Right-click your desktop > 'Personalize' > 'Themes' and click 'Penumbra10(w)(s)' under 'Apply a theme'
The preview image above uses "Penumbra10" (recommended)
See "Variants" section below for information about the different theme files.

5. Set Colors in Setting page to Dark ( ). Not doing this might cause some colors to not show correctly.

Something wrong? Try this

- If everything is still white or mostly white, click on the 'Windows' theme, reboot your computer, and repeat step 4.

- Reinstall the latest versions of UltraUXThemePatcher and Old New Explorer (ONE) (links above). Be sure to reboot afterward.

- Check the FAQ section of the UltraUXThemePatcher website (link above) if the steps above did not fix your problem. At this point, the problem is usually because of the required system files not getting patched correctly. 

Known problems

- Some remaining white elements, like in the Task manager under Performance

Known fixes

Problem: Hidden disabled text or icons (like in Notepad++)
Note: These altered themes will create minor inconsistencies in the theme.

Problem: The theme will have white elements after returning to the desktop from sleep, hibernating or locking the PC.
1. Open up "regedit"
2. Make a backup (right-click > export) of the following key/folder:
3. Now remove the key/folder [DefaultColors] (right-click > delete, may require you to Take Ownership first)
4. Done
Note: Your theme color will restore to default Windows blue after returning to the desktop. This only affects things like the lock screen colors and volume indicator color.

Extra customization

- To change your taskbar color/opacity…

- Bring back the old personalize window…

- Explorer window customization (Old New Explorer)…

- Center your taskbar icons…

- Bring back the command bar
    Use the following guide, but remove the line with Element padding, instead of adding it.…


Penumbra 10 comes with a couple of variants:

- Penumbra10: The theme as it was intended to be used.
If you don't know which variant you should use, pick this one.

- Penumbra10w: The w stands for "White".
This theme is like Penumbra 10, but has a white Windowcolor and black Windowtextcolor.
This is meant for people that want a dark theme, but don't want programs like Microsoft Word and Excel to be affected with a dark page and white text. This theme does create inconsistencies with the rest of the theme.

- Penumbra10s: The s stands for "Stock".
This theme is like Penumbra 10, but with stock/default looking caption buttons (Minimize, maximize, close) and Taskbar button.

- Penumbra10ws: A combination of White and Stock.


- Support for Windows 10 Version 1903 and 1909. Should work fine on older versions but I have not tested this.
- Small and old inconsistencies in the theme fixed
- Set Colors in Setting page to Dark ( ). Not doing this might cause some colors to not show correctly.
Some new inconsistencies might be occurring because of the migration to 1903/1909.

- The theme has not changed since it already supported version 1803, Spring Creators Update.
- Install the latest UltraUXThemePatcher and reboot if you're coming from an earlier version of Windows 10.
- Changed download folder structure. All abovementioned Windows 10 versions are supported by the same theme files. No need to differentiate with a different folder per Windows 10 version.

- Fixed white background in Run task dialog
- Fixed white background in Extract files window

- Fixed the no border issue. The theme now has the same border size as the default Windows theme (1px)
- Adjusted caption font and size

- Completely remade penumbra 10 with the version 1709 default Windows theme.
This means that the theme now officially supports Version 1709 (Build 16299) - Fall Creators Update.
- Certain problems, like the right-menu not showing or being bugged, should be fixed now.
- The border size is now 0px (from 4px)
     I tried to make the border 1px, but I can't seem to find the element that changes the color of the left border.
    With borders, it would show inactive windows with a translucent border and becomes opaque when the windows is active.
- Small color and asset changes

- Fixed Penumbra 10s and 10ws versions (taskbar pearl did not change)

- Updated Automated Theme Reset Script to work on Creators Update (using ThemeSwitcher now)

- Fixed the command bar on the Creative Update (it now no longer shows on mouse over)

- Added support for Version 1703 (Build 15063), also known as the Creators Update.* (separate folder)
- Fixed the unreadable searchbar text in explorer
- Increased the brightness of the right click menu
- New wallpaper

- Added two new variants: Penumbra 10s and Penumbra 10ws
The s stands for "Stock" and comes with stock/default looking caption buttons (Minimize, maximize, close) and Taskbar button.
- Removed Build 10586 (November)
- Small changes

- Added compatibility for build 14393 (Anniversary update)

- Small alignment and margin change for the explorer navbar

- Fixed copy window not showing with MTP transfers
- Changed caption buttons
- Changed the blue buttons in the copy window
- Changed the detail pane colors
- Other small changes

- Fixed build 10586 compatibility
- Fixed white in context menu
- Fixed black text problem
- Removed beta tag
- Tons of other small changes

- Initial beta release

Please read the complete description above and the comments below before asking about a problem!
anonymous's avatar
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Onyxx666's avatar
Onyxx666Professional Interface Designer

Huge thanks for this theme ♥ Really haven't found anything as clean that compares 😊

KineSight's avatar
KineSightStudent Digital Artist

Will this theme be updated for Windows 2004 ? I've tested it on version 2004 today and many elements are white and some text is black making it unreadable with the dark grey background.

Scope10's avatar
Scope10Hobbyist Interface Designer

I updated to version 2004 today and the theme itself does not need to be changed. Just update UltraUXThemePatcher, reboot and everything should be working like before.

KineSight's avatar
KineSightStudent Digital Artist

Not to be rude but I did update UltraUXThemepatcher and OldNewExplorer before asking if this theme will be updated for 2004.

-Task Manager was still white and grey mixed.

-Explorer toolbar wasn't showing (I think thats something to do with ONE)

-Minimize,Maximize and Close buttons were only lit up unlike the block around it changing the hover colour to light grey

Thats just some of the stuff the I noticed

vizzyss's avatar
vizzyssNew Deviant

edit: nvm uxthemepatcher did nothing sorry to bother u

Scope10's avatar
Scope10Hobbyist Interface Designer

Yes, although I wish there was a way to remove the white vertical separator line. For reference, my task manager looks like this:

Samminato's avatar

which pc have you got


dvntrt4543's avatar
dvntrt4543New Deviant

Thank You

this is so awesome!

ameensaid's avatar

Hey! for some reason it ain't working for me. i really want those cool looking title bars in my pc.

Scope10's avatar
Scope10Hobbyist Interface Designer

Did you correctly follow the installation steps? If you did, check the points under "Something wrong? Try this" in the description. That should fix most issues.

nakica's avatar
This theme is affecting my other regular programs, like GeoGebra or WinEdt (which kind of look like regular windows), and making them black, how can I stop this from happening? Can I add exceptions for what this theme affects?
Scope10's avatar
Scope10Hobbyist Interface Designer

Sadly, there is no exceptions to the theme. The program itself decides if/when it uses assets/colors from the Windows theme or it uses its own assets/colors.

TheNinjaCat27's avatar

I've already tried this theme before when my Windows 10 is in version 1709 (maybe) and it was amazing and have very simple looks! I want to try this again in my Windows 10 1909.

But my suggestion is, could you please make this theme compatible with upcoming Windows 10 version (such as Windows 10 version 2004 a.k.a. 20H1)?

Thanks for the awesome theme!

Scope10's avatar
Scope10Hobbyist Interface Designer

Version 2004 is not really ready for the mainstream just yet, but I will have time to check it out next week. I do know that UltraUXThemePatcher does seem to support the new update. Hopefully no or only minor changes need to be made to the theme itself for the next update.

Drayux's avatar
DrayuxHobbyist Filmographer

Perhaps a dumb question, but I managed to make the penumbra start icon disappear when installing StartIsBack. It looks like I can easily configure StartIsBack to use a custom button...if only I were able to find the icon within the Penumbra theme files.

Do you know where I could find it, or just download the .bmp?

Scope10's avatar
Scope10Hobbyist Interface Designer

I can give you the asset/image I use for the start icon in the theme. It's a .png and might not be in the right dimensions for StartIsBack, so you might need to make some small edit yourself. Start button image:

Sonikaxel's avatar
SonikaxelNew Deviant

In Penumbra10WS veriant, Task Manager's color still remain white except for title bar, menu bar and tabs

Great theme thought 👍

bacapoux's avatar
bacapouxNew Deviant


sehar72's avatar
sehar72New Deviant

THANK YOU!!!!! Fantastic work!!!! I've been longing for a theme like this

Ajithkumarnsp's avatar
AjithkumarnspNew Deviant

I couldn't apply it properly can you post the steps to do that. Thank you

sehar72's avatar
sehar72New Deviant

I just followed the instructions as are written above: Before you install.... and How to install

kesht's avatar

please fix to background exel and word (theme Penumbra and Penumbra S)?? black and gray font on a black (gray) background is bad

anonymous's avatar
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