diff --git a/public/css/theme-bthree-dark.css b/public/css/theme-bthree-dark.css
index 5c7075c..ddd2d0e 100644
--- a/public/css/theme-bthree-dark.css
+++ b/public/css/theme-bthree-dark.css
@@ -1,6 +1,19 @@
 
 /* bthree dark theme */
+@font-face {
+  font-family: "Heebo";
+  src: url("../fonts/Heebo-VariableFont_wght.ttf") format("truetype-variations");
+  font-weight: normal;
+  font-variation-settings: "wght" var(--font-weight);
+  font-style: normal
+}
+
 :root {
+  /* Override fonts. */
+  --fonts-override: 'Heebo', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
+  --font-weight-thin: 300;
+  --font-weight-bold: 600;
+
   --is-dark-theme: true;
 
   /* Spacing. */
@@ -218,6 +231,17 @@
   --color-footer-links: var(--color-text-light-1);
 }
 
+/* Strong/bold elements. */
+strong, b, h1, h2, h3, h4, h5, h6,
+.issue.list>.item .issue-item-top-row {
+  font-weight: normal !important;
+  font-variation-settings: "wght" var(--font-weight-bold);
+}
+
+.repository.view.issue .title .issue-title h1 {
+  font-variation-settings: "wght" var(--font-weight-thin);
+}
+
 /* Custom styling of individual elements.
  * Using !important is bad, but unfortunately gitea does it already in _base.less. */
 
diff --git a/public/fonts/Heebo-VariableFont_wght.ttf b/public/fonts/Heebo-VariableFont_wght.ttf
new file mode 100755
index 0000000..017130f
Binary files /dev/null and b/public/fonts/Heebo-VariableFont_wght.ttf differ