# Pull Request Template
## Description
This PR fixes the white background bleed visible in the widget, widget
article viewer and help center when dark mode is active.
**What was happening**
While scrolling, the `<body>` element retained a white background in
dark mode. This occurred because dark mode classes were only applied to
inner container elements, not the root.
**What changed**
* **Widget:** Updated the `useDarkMode` composable to sync the `dark`
class to `<html>` using `watchEffect`, allowing `<body>` to inherit dark
theme variables. Also added background styles to `html`, `body`, and
`#app` in `woot.scss`.
* **Help center portal:** Moved `bg-white dark:bg-slate-900` from
`<main>` to `<body>` in the portal layout so the entire page background
responds correctly to dark mode, including within the widget iframe.
* **ArticleViewer:** Replaced hardcoded `bg-white` with `bg-n-solid-1`
to ensure better theming.
Fixes
https://linear.app/chatwoot/issue/CW-6704/widget-body-colour-not-implemented
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## How Has This Been Tested?
### Screencasts
### Before
**Widget**
https://github.com/user-attachments/assets/e0224ad1-81a6-440a-a824-e115fb806728
**Help center**
https://github.com/user-attachments/assets/40a8ded5-5360-474d-9ec5-fd23e037c845
### After
**Widget**
https://github.com/user-attachments/assets/dd37cc68-99fc-4d60-b2ae-cf41f9d4d38c
**Help center**
https://github.com/user-attachments/assets/bc998c4e-ef77-46fa-ac7f-4ea16d912ce3
## Checklist:
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
