Yes, you can definitely add SVG code within the Navbar element on your Webflow site. The Embed widget is the right tool to use for this purpose. However, you mentioned that nothing shows up when you tried using the Embed widget within the Brand element. There are a few things you can check to troubleshoot this issue:
1. Make sure your SVG code is correct: Ensure that the code you are using for your SVG is valid and error-free. You can verify this by pasting your SVG code into an online SVG validator like the one provided by W3C. This will help identify any issues with the SVG code itself.
2. Confirm the placement of the Embed widget: Double-check that you have placed the Embed widget in the correct location within the Brand element. The Embed widget should be added directly within the Brand element, not as a child of any other elements within it.
3. Use the correct syntax: When adding the SVG code within the Embed widget, make sure you are using the correct syntax. For example, if your SVG code looks like ``, you should paste it as-is into the Embed widget.
Now, regarding your question about SVG support in the Free account, the good news is that Webflow does support SVGs in all account plans, including the Free plan. So you should have no issues using SVGs within your Webflow site, regardless of your account type.
If you have followed these steps and are still experiencing issues with your SVG not showing up, it might be helpful to provide more details or even share your read-only link so that further investigation can be done to pinpoint the problem.