# Theme Builder
The theme system in Wisej.NET is quite powerful and goes beyond simple CSS, LESS or SASS. It is entirely contained in a single JSON file, including colors, images, fonts and appearances. You can virtually change any visual aspect of Wisej controls through a single theme file.
## Main Window
## Installation
The Theme Builder application doesn't need to be installed. It's a single self-contained executable that you can freely distribute to other developers or graphic designer professionals.
{% embed url="" %}
## MCP Endpoint
The documentation is also available through an **MCP (Model Context Protocol) endpoint**, enabling AI tools and agents to access it directly as a structured, queryable source. Instead of relying on static content or embeddings, MCP allows real-time discovery, search, and retrieval of authoritative information. Use the following endpoint to connect your AI client and interact with the documentation programmatically: .
---
# Agent Instructions: 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:
```
GET https://docs.wisej.com/theme-builder/welcome.md?ask=
```
The question should be specific, self-contained, and written in natural language.
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.