> For the complete documentation index, see [llms.txt](https://docs.cogram.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cogram.com/your-account/appearance.md). # Appearance Switch Cogram between light, dark, and system appearance. Open the avatar menu at the bottom of the left sidebar and select the appearance control. Each click cycles through three modes: * **Light**: the standard light theme. * **Dark**: easier on the eyes in low light. * **System**: follows your operating system, switching when it switches. The control's label and icon show your current choice: **Light theme** (sun), **Dark theme** (moon), or **System theme** (monitor). New users start on **System**. Your choice is saved in your browser rather than your account, so set it again on another browser or device. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.cogram.com/your-account/appearance.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.