Fix color of hamburger in dark mode

app/assets/stylesheets/framework/contextual_sidebar.scss

@@ -436,11 +436,7 @@
   padding: 6px 16px;
   margin: 0 0 0 -15px;
   height: 46px;
-
-  i {
-    font-size: 20px;
-    color: $gl-text-color-secondary;
-  }
+  color: $gl-text-color;
 
   @include media-breakpoint-down(sm) {
     display: flex;

app/views/layouts/nav/_breadcrumbs.html.haml

@@ -8,7 +8,7 @@
     - if defined?(@left_sidebar)
       = button_tag class: 'toggle-mobile-nav', type: 'button' do
         %span.sr-only= _("Open sidebar")
-        = sprite_icon('hamburger')
+        = sprite_icon('hamburger', size: 18)
     .breadcrumbs-links.js-title-container{ data: { qa_selector: 'breadcrumb_links_content' } }
       %ul.list-unstyled.breadcrumbs-list.js-breadcrumbs-list
         - unless hide_top_links

changelogs/unreleased/fix-color-of-hamburger-in-darkmode.yml

+---
+title: Fix color of hamburger in dark mode
+merge_request: 51168
+author: Kev @KevSlashNull
+type: fixed