What is the use of these hidden 8 svgs above the _S themes and where is it created?

[yazdi]

I found out that in all the templates created by _s, there are 8 svg codes hidden at the top of the page, what is its use and through which file and code is it created?

[manish2384]

This generated from latest Wordpress update with new Block theme to define colors. To disable this you will have to create theme.json file in your theme and add following code inside it

{
    "version": 1,
    "settings": {
      "color": {
        "duotone": null
      }
    }
  }

This will resolve your question and remove this svgs.

[mrwweb]

I believe the officially recommended solution is this:

/* Don't load duotone filters */ remove_action( 'wp_body_open', 'wp_global_styles_render_svg_filters' );

This isn't an _s issue, so can be closed :)