diff --git a/changelog.d/20231120_125001_pablo.lamela_PLT_7568.md b/changelog.d/20231120_125001_pablo.lamela_PLT_7568.md
new file mode 100644
index 0000000000..7d0f1d7b93
--- /dev/null
+++ b/changelog.d/20231120_125001_pablo.lamela_PLT_7568.md
@@ -0,0 +1,42 @@
+<!--
+A new scriv changelog fragment.
+
+Uncomment the section that is right (remove the HTML comment wrapper).
+-->
+
+<!--
+### Removed
+
+- A bullet item for the Removed category.
+
+-->
+<!--
+### Added
+
+- A bullet item for the Added category.
+
+-->
+
+### Changed
+
+- Made greying out of boilerplate of TypeScript editor darker.
+
+
+<!--
+### Deprecated
+
+- A bullet item for the Deprecated category.
+
+-->
+<!--
+### Fixed
+
+- A bullet item for the Fixed category.
+
+-->
+<!--
+### Security
+
+- A bullet item for the Security category.
+
+-->
diff --git a/marlowe-playground-client/static/css/main.css b/marlowe-playground-client/static/css/main.css
index c59ac39786..a4dd23ef1e 100644
--- a/marlowe-playground-client/static/css/main.css
+++ b/marlowe-playground-client/static/css/main.css
@@ -158,7 +158,7 @@ a:hover {
 }
 
 .monaco-readonly-decoration {
-  background-color: #fafafa;
+  background-color: #f0f0f0;
 }
 
 .monaco-simulation-text-decoration {