diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ae5a7dca..05908fe2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## Unreleased
 
+### Fixed
+
+- Selected text background colour contrast in editor dark mode (#1150)
+
+### Changed
+
+- Toned down the match highlighting colour in editor dark mode (#1150)
+
 ## [0.28.11] - 2024-12-03
 
 ### Fixed
diff --git a/src/assets/themes/editorDarkTheme.js b/src/assets/themes/editorDarkTheme.js
index 04538e106..66ef7154e 100644
--- a/src/assets/themes/editorDarkTheme.js
+++ b/src/assets/themes/editorDarkTheme.js
@@ -17,8 +17,11 @@ export const editorDarkTheme = EditorView.theme(
       "background-color": "inherit",
       color: "inherit",
     },
-    "&.cm-focused .cm-selectionBackground, ::selection": {
-      background: "#144866",
+    "&.cm-focused.ͼ3 .cm-selectionLayer .cm-selectionBackground": {
+      backgroundColor: "#144866",
+    },
+    ".cm-selectionMatch": {
+      backgroundColor: "rgba(153, 255, 119, 0.2)",
     },
     "&.cm-focused .cm-cursor": {
       borderLeftColor: "white",