OK, trying something else

_config.yml

@@ -1,3 +1,9 @@
 remote_theme: pages-themes/slate@v0.2.0
 plugins:
 - jekyll-remote-theme # add this line to the plugins list if you already have one
+
+image:
+  path: /toylogo.png
+
+author:
+  twitter: KRGameStudios

_includes/head-custom.html

@@ -1,27 +0,0 @@
-{% comment %}
-  Placeholder to allow defining custom head, in principle, you can add anything here, e.g. favicons:
-
-  1. Head over to https://realfavicongenerator.net/ to add your own favicons.
-  2. Customize default _includes/custom-head.html in your source directory and insert the given code snippet.
-{% endcomment %}
-
-<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
-<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
-<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
-<link rel="manifest" href="/site.webmanifest">
-<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5">
-<meta name="msapplication-TileColor" content="#da532c">
-<meta name="theme-color" content="#ffffff">
-
-<meta property="og:url" content="https://toylang.com" />
-<meta property="og:type" content="website" />
-<meta property="og:image" content="https://toylang.com/toylogo.png" />
-<meta property="og:title" content="Toy" />
-<meta property="og:description" content="A Toy Programming Language" />
-
-<meta property="twitter:card" content="summary_large_image" />
-<meta property="twitter:url" content="https://toylang.com" />
-<meta property="twitter:type" content="website" />
-<meta property="twitter:image" content="https://toylang.com/toylogo.png" />
-<meta property="twitter:title" content="Toy" />
-<meta property="twitter:description" content="A Toy Programming Language" />