I want to create custom tags using this lib but i got error

There is no custom renderer registered for tag "red" which is not part of the HTML5 standard.

So my code so far

    const source = {
      html: `
    <red>
      dsfsd
    </red>
    `,
    };
    
    const tagsStyles = {
      red: {
        color: "red",
      },
    };
<RenderHtml
 contentWidth={width}
tagsStyles={tagsStyles}
source={source}
/>

I am pretty sure that there is way that i can create text red but i cant really find it. What should i do? If anyone has experience with this library i will be very heppy!