diff --git a/app/MindWork AI Studio/wwwroot/app.css b/app/MindWork AI Studio/wwwroot/app.css
index f4277fc..cd6d5a3 100644
--- a/app/MindWork AI Studio/wwwroot/app.css	
+++ b/app/MindWork AI Studio/wwwroot/app.css	
@@ -54,4 +54,8 @@
 
 .custom-icon-color > a > svg {
     color: var(--custom-icon-color) !important;
+}
+
+.improvedDiff .wikEdDiffFragment {
+    background-color: initial !important;
 }
\ No newline at end of file
diff --git a/app/MindWork AI Studio/wwwroot/app.js b/app/MindWork AI Studio/wwwroot/app.js
index 04267db..aa6b8e2 100644
--- a/app/MindWork AI Studio/wwwroot/app.js	
+++ b/app/MindWork AI Studio/wwwroot/app.js	
@@ -2,7 +2,7 @@ window.generateDiff = function (text1, text2, divDiff, divLegend) {
     let wikEdDiff = new WikEdDiff();
     let targetDiv = document.getElementById(divDiff)
     targetDiv.innerHTML = wikEdDiff.diff(text1, text2);
-    targetDiv.classList.add('mud-typography-body1');
+    targetDiv.classList.add('mud-typography-body1', 'improvedDiff');
     
     let legend = document.getElementById(divLegend);
     legend.innerHTML = `
diff --git a/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md b/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md
index 54f08df..abd8418 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v0.9.12.md	
@@ -1,5 +1,6 @@
 # v0.9.12, build 187 (2024-09-xx xx:xx UTC)
 - Added a job posting assistant to the business category.
+- Fixed the dark theme for the text diff viewer, e.g., in the grammar check assistant.
 - Fixed margin-related issue in the `ConfigurationText` component.
 - Fixed chat conversion of job posting, legal check, and my task assistants.
 - Refactored the `ConfigurationText` component to debounce the input field to prevent unnecessary configuration updates. The component now also supports multiline text.
\ No newline at end of file