diff --git a/epicyon-profile.css b/epicyon-profile.css
index a60c47c5d..9b678c737 100644
--- a/epicyon-profile.css
+++ b/epicyon-profile.css
@@ -209,6 +209,8 @@
     --vcard-icon-size: 32px;
     --vcard-icon-size-mobile: 80px;
     --vcard-icon-size-tiny: 80px;
+    --diff-add: #FFFFFF;
+    --diff-remove: #aaa;
 }
 
 @font-face {
@@ -263,11 +265,11 @@ mark {
 }
 
 .diff_add {
-    color: var(--time-color);
+    color: var(--diff-add);
 }
 
 .diff_remove {
-    color: var(--title-color);
+    color: var(--diff-remove);
 }
 
 .accesskeys {
diff --git a/theme/debian/theme.json b/theme/debian/theme.json
index 6455abd19..8e892683d 100644
--- a/theme/debian/theme.json
+++ b/theme/debian/theme.json
@@ -1,4 +1,6 @@
 {
+    "diff-add": "#111",
+    "diff-remove": "#333",
     "pwa-theme-color": "apple-mobile-web-app-status-bar-style",
     "pwa-theme-background-color": "black-translucent",
     "dropdown-fg-color": "#222",
diff --git a/theme/default/theme.json b/theme/default/theme.json
index b75a33daa..d376c0ed6 100644
--- a/theme/default/theme.json
+++ b/theme/default/theme.json
@@ -254,5 +254,7 @@
     "banner-height": "15vh",
     "post-separator-margin-top": "0",
     "post-separator-margin-bottom": "0",
-    "header-font": "Arial, Helvetica, sans-serif"
+    "header-font": "Arial, Helvetica, sans-serif",
+    "diff-add": "#FFFFFF",
+    "diff-remove": "#aaa"
 }
diff --git a/theme/indymediamodern/theme.json b/theme/indymediamodern/theme.json
index eb8434688..a2078a56b 100644
--- a/theme/indymediamodern/theme.json
+++ b/theme/indymediamodern/theme.json
@@ -1,4 +1,6 @@
 {
+    "diff-add": "#111",
+    "diff-remove": "#333",
     "pwa-theme-color": "apple-mobile-web-app-status-bar-style",
     "pwa-theme-background-color": "black-translucent",
     "dropdown-fg-color": "black",
diff --git a/theme/light/theme.json b/theme/light/theme.json
index 7fdcecec1..8e58632e3 100644
--- a/theme/light/theme.json
+++ b/theme/light/theme.json
@@ -1,4 +1,6 @@
 {
+    "diff-add": "#111",
+    "diff-remove": "#333",
     "pwa-theme-color": "apple-mobile-web-app-status-bar-style",
     "pwa-theme-background-color": "black-translucent",
     "dropdown-fg-color": "#2d2c37",
diff --git a/theme/pixel/theme.json b/theme/pixel/theme.json
index fd6e68145..7a50276c1 100644
--- a/theme/pixel/theme.json
+++ b/theme/pixel/theme.json
@@ -1,4 +1,6 @@
 {
+    "diff-add": "#111",
+    "diff-remove": "#333",
     "pwa-theme-color": "apple-mobile-web-app-status-bar-style",
     "pwa-theme-background-color": "black-translucent",
     "dropdown-fg-color": "black",