Figma does not natively support rendering Markdown within text fields, even with plugins. However, you can use plugins to assist with converting Markdown text into visually styled text in Figma. There are a few Figma plugins that can help with this. Here's how you can use a plugin like "Markdown to Text Layer" to render Markdown in Figma:
1. **Install the Plugin**:
- Open Figma.
- Click on the "Plugins" menu in the top left corner.
- Choose "Browse Plugins."
- Search for the "Markdown to Text Layer" plugin and install it.
2. **Convert Markdown to Text Layer**:
- Select the text layer where you want to render the Markdown.
- Open the "Plugins" menu again.
- Find and run the "Markdown to Text Layer" plugin.
3. **Input Markdown**:
- In the plugin's dialog, input or paste the Markdown text you want to render.
- Click a button to convert the Markdown to styled text.
4. **Apply Styling (if needed)**:
- The plugin will convert the Markdown to styled text and insert it into your selected text layer.
- You can manually adjust the styling (e.g., font size, color, headers) within Figma to better match the Markdown formatting.

Keep in mind that the rendering of Markdown in Figma text layers with plugins is a one-time operation. The content will not stay in Markdown format that can be edited later. It's a way to get a visual representation of the Markdown content, but you won't have the dynamic editing or parsing capabilities that dedicated Markdown editors or rendering libraries provide.

Additionally, the available Figma plugins may vary, and new plugins may be developed over time, so you might explore different plugins to see which one best suits your needs.

Additionaly You can use markdown widgit, A Markdown widget is a Figma widget that allows you to render Markdown in a text field. To use it, follow these steps:
* Drag a Markdown widget onto the Figma canvas.
* In the Markdown widget properties, type or paste your Markdown code.
* Click the Render button.

The Markdown widget will render your Markdown code in the text field.