> ## Documentation Index > Fetch the complete documentation index at: https://svelvet.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Contrast Theme > Optional Component that allows users with visual impairments to customize the theme ## Description To render the Theme Toggle component, simply pass the contrast prop to the Svelvet component. This will generate a select menu offering 8 preset themes tailored for individuals with diverse visual conditions, featuring common color combinations. Additionally, the component includes a custom option, empowering users to tailor the theme according to their specific requirements. When passing the component to Svelvet, you must specify slot="contrast" ```HTML theme={null} ``` Color of background. Color of text. Color of node. Color of edge.