Zotero-Dark-Theme

userChrome.css file for a Zotero dark theme. Suggestions for improvements are welcome.

New version available for Zotero 6. Created for Zotero 5.0.92. Windows 10 compatible.

To use it follow the following steps:

Go to your user Profile folder
- Windows users: C:\Users\User_name\AppData\Roaming\Zotero\Zotero\Profiles\user_profile.default\
- Linux (Flatpak) users: ~/.zotero/zotero/XXXXXXXX.default/
Create a chrome folder
Place the userChrome.css file in there
Start Zotero and enjoy

I encourage everyone to play around with this and try to improve on it and theme things that I didn't manage to. These include the following elements:

Scrollbars (that is usually done via userContent.css in Firefox but it doesn't work in Zotero)
New PDF reader
Note editor (in Zotero 6)
Menu colors
Sub-categories in the Preferences dialog. Not satisfied with the preferences dialog but it's the best I could make it

If you wish to explore for additional elements to alter:

Go to the folder of my Zotero install (C:\Programs(x86)\Zotero)
Copy the zotero.jar folder to another folder
Use 7zip to unzip zotero.jar to a zotero folder
Go to D:\X\zotero\chrome\skin\default\zotero
Look at ALL .css files in this folder
Start testing different pieces of code to change the defaults in the userchrome.css file.

To implement a dark theme in the Note Editor in Zotero 5 (credit to 10cks) follow the subsequent steps:

Start Zotero
Go to Preferences -> Advanced -> Config Editor
Select "I accept the risks!"
Search extensions.zotero.note.css and double-click it
Insert the string in the Note_editor_css.txt file
Click "OK" or close the dialog box
Restart Zotero.

Dark theme compatible with MacOS is available as a fork maintained by yiktungho: https://github.com/yiktungho/Zotero-Dark-Theme/tree/mac-patch

stogiannidis/Zotero-Dark-Theme

Zotero-Dark-Theme