diff --git a/datamodels/2.x/itop-portal-base/portal/public/css/portal.css b/datamodels/2.x/itop-portal-base/portal/public/css/portal.css
index ada90df16a..abb11f52b5 100644
--- a/datamodels/2.x/itop-portal-base/portal/public/css/portal.css
+++ b/datamodels/2.x/itop-portal-base/portal/public/css/portal.css
@@ -1134,7 +1134,8 @@ table .group-actions .item-action-wrapper .panel-body > p:last-child {
   font-size: 18px;
   color: #444;
   /* .caselog-thread--block-entries color */
-  background-size: 85%;
+  background-size: 100%;
+  /* Full size is necessary for images with filled background to fit nicely in the medallion, even if this means that images with a transparent background might appear cropped */
   background-position: center center;
   background-color: #FFFFFF;
   /* .caselog-thread--block-entries background-color */
diff --git a/datamodels/2.x/itop-portal-base/portal/public/css/portal.scss b/datamodels/2.x/itop-portal-base/portal/public/css/portal.scss
index f5873b6cc1..ab4cfd3c4a 100644
--- a/datamodels/2.x/itop-portal-base/portal/public/css/portal.scss
+++ b/datamodels/2.x/itop-portal-base/portal/public/css/portal.scss
@@ -1232,7 +1232,7 @@ table .group-actions .item-action-wrapper .panel-body > p:last-child{
 	font-size: 18px;
 	color: $messaging-self-secondary-color; /* .caselog-thread--block-entries color */
 
-	background-size: 85%;
+	background-size: 100%; /* Full size is necessary for images with filled background to fit nicely in the medallion, even if this means that images with a transparent background might appear cropped */
 	background-position: center center;
 	background-color: $messaging-self-primary-color; /* .caselog-thread--block-entries background-color */
 	background-repeat: no-repeat;