Yup

resources/blueprints/collections/tournaments/tournament.yaml

@@ -57,7 +57,7 @@ tabs:
               display: Logo
               instructions: 'Transparent tournament logo'
               mode: grid
-              width: 33
+              width: 50
           -
             handle: backdrop
             field:
@@ -67,7 +67,8 @@ tabs:
               display: Backdrop
               instructions: 'Image du jeu'
               sortable: false
-              width: 33
+              width: 50
+              mode: grid
           -
             handle: video
             field: