diff --git a/res/themes/legacy-dark/css/_legacy-dark.scss b/res/themes/legacy-dark/css/_legacy-dark.scss
index b27b7f920b..0fe9f22dde 100644
--- a/res/themes/legacy-dark/css/_legacy-dark.scss
+++ b/res/themes/legacy-dark/css/_legacy-dark.scss
@@ -110,13 +110,23 @@ $header-divider-color: $header-panel-text-primary-color;
 $composer-e2e-icon-color: $header-panel-text-primary-color;
 
 // Legacy theme backports
+$accent: #0DBD8B;
+$alert: #FF5B55;
+$links: #0086e6;
 $primary-content: $primary-fg-color;
 $secondary-content: $secondary-fg-color;
 $tertiary-content: $tertiary-fg-color;
 $quaternary-content: #6F7882;
 $quinary-content: $quaternary-content;
+$system: #21262C;
 $background: $primary-bg-color;
+$panels: rgba($system, 0.9);
+$panel-base: #8D97A5; // This color is not intended for use in the app
+$panel-selected: rgba($panel-base, 0.3);
+$panel-hover: rgba($panel-base, 0.1);
 $panel-actions: $roomtile-selected-bg-color;
+$space-nav: rgba($panel-base, 0.1);
+
 // Legacy theme backports
 
 // ********************