Configuration->Themes: Number of rows not displayed correctly

Steps to reproduce:
1. Go to Configuration->Themes
2. Make sure that more than 10 themes exist (and are matched by the current search and filter settings) and the pagination is set to 10

Actual Results:
The number of rows shown directly under the title "Themes" indicates how many row are currently displayed. This is not consistent with the rest of the Admin UI were the number of rows indicates the number of rows matching the current search and filter criteria

Expected Results:
The number of rows should provide information consistent with its use at other places in the AdminUI, i.e. it shall display how many rows do match the current search and filter criteria

Workaround (if any):