only in patch2:
unchanged:
--- a/core/themes/starterkit_theme/css/components/container-inline.css
+++ b/core/themes/starterkit_theme/css/components/container-inline.css
@@ -7,6 +7,7 @@
 .container-inline .label:after {
   content: ":";
 }
+.container-inline .form-type--checkbox label:after,
 .form-type-radios .container-inline label:after,
 .form-type-checkboxes .container-inline label:after {
   content: "";