Solarized dark Web IDE

 Adds the solarized dark theme for the Web IDE interface

app/assets/javascripts/behaviors/markdown/render_mermaid.js

@@ -25,9 +25,10 @@ function importMermaidModule() {
   return import(/* webpackChunkName: 'mermaid' */ 'mermaid')
     .then(mermaid => {
       let theme = 'neutral';
+      const ideDarkThemes = ['dark', 'solarized-dark'];
 
       if (
-        window.gon?.user_color_scheme === 'dark' &&
+        ideDarkThemes.includes(window.gon?.user_color_scheme) &&
         // if on the Web IDE page
         document.querySelector('.ide')
       ) {

app/assets/stylesheets/page_bundles/ide.scss

@@ -5,6 +5,7 @@
 @import './ide_theme_overrides';
 
 @import './ide_themes/dark';
+@import './ide_themes/solarized-dark';
 
 $search-list-icon-width: 18px;
 $ide-activity-bar-width: 60px;
@@ -89,7 +90,7 @@ $ide-commit-header-height: 48px;
 
     &.active {
       background-color: var(--ide-highlight-background, $white);
-      border-bottom-color: var(--ide-border-color, $white);
+      border-bottom-color: transparent;
     }
 
     &:not(.disabled) {

app/assets/stylesheets/page_bundles/ide_themes/_solarized-dark.scss

+// -------
+// Please see `app/assets/stylesheets/page_bundles/ide_themes/README.md` for a guide on contributing new themes
+// -------
+.ide.theme-solarized-dark {
+  --ide-border-color: #002c38;
+  --ide-border-color-alt: var(--ide-background);
+  --ide-highlight-accent: #fff;
+  --ide-text-color: #ddd;
+  --ide-text-color-secondary: #ddd;
+  --ide-background: #004152;
+  --ide-background-hover: #003b4d;
+  --ide-highlight-background: #003240;
+  --ide-link-color: #73b9ff;
+  --ide-footer-background: var(--ide-highlight-background);
+
+  --ide-input-border: #d8d8d8;
+  --ide-input-background: transparent;
+  --ide-input-color: #fff;
+
+  --ide-btn-default-background: transparent;
+  --ide-btn-default-border: var(--ide-input-border);
+  --ide-btn-default-hover-border: #d8d8d8;
+
+  --ide-btn-primary-background: #1068bf;
+  --ide-btn-primary-border: #428fdc;
+  --ide-btn-primary-hover-border: #63a6e9;
+
+  --ide-btn-success-background: #217645;
+  --ide-btn-success-border: #108548;
+  --ide-btn-success-hover-border: #2da160;
+
+  --ide-btn-disabled-border: rgba(223, 223, 223, 0.24);
+  --ide-btn-disabled-color: rgba(145, 145, 145, 0.48);
+
+  --ide-btn-hover-border-width: 2px;
+
+  --ide-dropdown-background: #004c61;
+  --ide-dropdown-hover-background: #00617a;
+
+  --ide-dropdown-btn-hover-border: #e9ecef;
+  --ide-dropdown-btn-hover-background: var(--ide-background-hover);
+
+  --ide-file-row-btn-hover-background: #005a73;
+
+  --ide-diff-insert: rgba(155, 185, 85, 0.2);
+  --ide-diff-remove: rgba(255, 0, 0, 0.2);
+
+  --ide-animation-gradient-1: var(--ide-file-row-btn-hover-background);
+  --ide-animation-gradient-2: var(--ide-dropdown-hover-background);
+  }

changelogs/unreleased/219228-add-web-ide-solarized-dark-theme-support.yml

+---
+title: Add solarized dark for Web IDE
+merge_request: 33148
+author:
+type: added