Support theme=dark|light via URL parameter #1517
Description
Describe the feature request
Currently, the theme in Gatus is determined by a cookie or the UI configuration. This works well in most cases, but it would be very useful to also support overriding the theme via a URL parameter, e.g.:
?theme=dark
?theme=light
Why do you personally want this feature to be implemented?
I embed Gatus inside an internal application using an <iframe>. In this setup, I’d like the parent application to control whether Gatus is displayed in dark or light mode, without relying on cookies or requiring user interaction inside Gatus itself (or worse getting a light flash at 11pm)
Supporting a URL-based theme override would make it easier to integrate Gatus into other UIs and ensure consistent theming across embedded contexts.
Happy to help with implementation or testing if this is something you’d consider adding 👍
How long have you been using this project?
Since July 2025
Additional information
No response