Switch between light and dark mode
Switch between light and dark mode in Cortex Chat: practical steps, setting explanations, result checks and troubleshooting.
The theme button offers Switch to dark mode or Switch to light mode and stores a device preference. Embedded workspace surfaces can follow the current Chat theme, but an app’s own availability is independent of its colour scheme.
Before you start
Appearance, layout, notification sounds and some cached history are device/browser state. The interface explicitly marks a conversation background as This device and distinguishes an account-saved default Sidekick from a cached value. Another participant or device may therefore look different without anything being broken. A cached conversation is useful while reconnecting but does not prove that identity is currently verified or that a new message reached the server. Preserve useful drafts before clearing browser storage. When troubleshooting, distinguish browser permission, local preference, network availability and external service state instead of treating them as one setting.
Step-by-step
- Find the theme control in the Chat interface.
- Activate the button for the intended mode.
- Check the conversation and an open app surface, then reopen Chat to inspect the retained preference.
What the settings mean
| Control or state | Meaning |
|---|---|
| Device preference | A setting whose effect is local to this browser or device. |
| Account preference | A value confirmed as saved to the signed-in account. |
| Cached history | Previously stored conversation content, not a new server result. |
| Browser permission | Microphone, sound or notification authority outside the app switch. |
Check the result
The interface remains readable in the chosen mode on this device.
If it does not work
If another device shows a different theme, check that device’s preference. Theme changes do not repair account, connection or permission problems.
Continue with the right context
Return to the Cortex Chat guide index to choose another task. Keep the current account, assistant and conversation in view when following the next guide. To use the product, open Cortex Chat.
- Choose a conversation background
- Upload or remove a custom chat background
- Dock, pop out or minimise Sidekick chat
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