I am trying to change favicon.svg color via CSS media-tag inside of that SVG. At Chrome and Microsoft Edge it works fluently except Firefox. The logic is that I switch my Windows 10 default app theme to dark mode, so that my favicon changes from black to white color on my browser. So when I do that, my Firefox-browser theme changing as well, but icon doesn't change its color like other browsers do. What could be the reason for such strange Firefox behaviour? Even with ui.systemUsesDarkTheme 1