How to fix the wide mode and theme in streamlit?

I’m having trouble changing the theme and the mode of my webapp. I’m using the Visual Studio Code program to program and there, I opened a folder named .streamlit and inside it, a file named config.toml . I pasted the theme changes, but when I refreshed the page, they were not saved. When I generate the link to share my site, it also doesn’t keep the colors I chose. The same occurs to the Wide Mode, I can’t fix this setting. What could have happened? Print Visual code: