fix: change opacity for branding

src/styles/_statusmap.scss

@@ -25,7 +25,7 @@
     right: 0;
     width: 20px;
     height: 20px;
-    opacity: 0.15;
+    opacity: $branding-opacity;
 
     :hover > & {
       opacity: 1;

src/styles/_variables.dark.scss

@@ -7,3 +7,5 @@ $warning-bg: #333333; // $dark-4
 $theme-name: dark;
 $white: #fff;
 $red: #d44a3a;
+
+$branding-opacity: 0.5;

src/styles/_variables.light.scss

@@ -8,3 +8,4 @@ $theme-name: light;
 $white: #fff;
 $red: #d44939;
 
+$branding-opacity: 0.33;