> For the complete documentation index, see [llms.txt](https://infinity-command.gitbook.io/infinity-command/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://infinity-command.gitbook.io/infinity-command/effects/alert-levels.md).
# Alert Levels
Alert levels reflect the overall condition of the ship and situation. When the alert level changes, several effects may be triggered, including:
* Sound effects
* Videos
* Trim around the Viewscreen
* The header at the top of the Crew Stations changes color
These are all cosmetic effects. They have no functional impact.
## Green Alert
Green Alert is the default state. The Crew Station header looks like this:
## Yellow Alert
A sound effect plays when Yellow Alert is triggered. The Crew Station header looks like this:
## Red Alert
A sound effect plays when Red Alert is triggered. A video also plays on the Viewscreen:
The Crew Station header looks like this:
## Customization
These sound and video effects are controlled via Cue Cards, so [they can be customized](/infinity-command/customization/customizing-your-content-pack.md#customizing-cues-and-cue-cards) to suit your needs.
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