diff --git a/trac/htdocs/libcaca.css b/trac/htdocs/libcaca.css
index 0e44cc1..ea955e3 100644
--- a/trac/htdocs/libcaca.css
+++ b/trac/htdocs/libcaca.css
@@ -606,7 +606,7 @@ table.listing tbody td.new_replies {
 }
 .tickets tr.color3-odd, 
 table.listing tbody tr.odd {
-    background: rgba(255, 255, 255, 0.7);
+    background: rgba(255, 255, 255, 0.9);
 }
 .tickets tr.color3-even, 
 table.listing tbody tr.even {
@@ -617,7 +617,7 @@ table.listing tbody tr:hover { background: #D7E6FF !important }
 table.listing tbody tr.focus { background: #D7E6FF !important }
 
 .tickets tr.color4-odd {
-    background: rgba(195, 215, 255, 0.8);
+    background: rgba(195, 215, 255, 0.9);
 }
 .tickets tr.color4-even {
     background: rgba(210, 215, 240, 0.8);