Variable logo?

Site URL: https://sixmileshigh.com/israel

Hi all, I'm using Nolan template in 7.1 which I love. Some of my pages end up being black and some white at the top. I wondered if there was custom code that would flip my logo to a white version when the page is black and a black version when the page is white etc. 

Realise I'm asking for the moon but if you don't ask…

Any thoughts welcome, 

Thanks, Mark 

Add to Page Settings . Advanced > Header to change white to black logo

<style>
  .header-title-logo img {
    filter: invert(1);
}
</style>