Dark Mode and custom API URL

This is a very good software, but it does not support night mode, which is a bit regrettable. In addition, in some places where the network is blocked, direct access to api.openai.com is not possible. I hope there can be an option to customize the API URL. Some open-source projects allow the use of methods like Cloudflare Worker to reverse proxy OpenAI's API, so that it can be used normally in blocked areas.