In StylesSet first element look like it has already been applied

[sunwayru]

In the StylesSet, when drop-down is opened, the first element look like it has already been applied.

You can see it on
https://ckeditor.com/docs/ckeditor4/latest/examples/styles.html
If i set focus on H1, in StylesSet first style "Italic" look like it has already been applied.

It should be fixed in /ckeditor/skins/mono-lisa/editor.css
adding
.cke_panel_listItem a:focus{background-color: transparent !important;}

[jacekbogdanski]

We could change combo box item outline to blue, similarly how it was done for color buttons:

[sunwayru]

yes, the first style should not look exactly the same as the chosen style - otherwise it is confusing