tools.stamp.custom
Your own stamp images, listed under Yours next to the stamps the user makes, at their own proportions and at most 200 pt wide. A
data: URL whose header claims a raster too large to decode (over 64 million pixels, or a side over 16384 px) is left out with a console warning. A stamp image url on another origin needs that origin in connect-src or img-src.{ label: string; url: string }[]
Example
stamp.customTypeScript
tools: { stamp: { builtIn: true, custom: [{ label: 'Logo', url: '/stamps/logo.png' }] } }