Try to make SVG visible in dark mode

Author: jvns

assets/sass/cheat-sheet.scss

@@ -1,5 +1,13 @@
 @import "variables";
 
+:root {
+  --svg-bg: transparent;
+}
+
+:root[data-theme="dark"] {
+  --svg-bg: #777;
+}
+
 .cheat-sheet {
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
 
@@ -21,6 +29,10 @@
     svg {
       height: auto;
       width: 100%;
+      border-radius: 5px;
+      padding: 5px;
+      box-sizing: border-box;
+      background: var(--svg-bg);
     }
 
     h3 {