Close & Clean has been updated.
There is one notable new feature in this version: you can now change the toolbar icon on the "options" page. For better support for different browser themes (especially if you are using dark theme), you can select among several different colors for the icon: red, green, blue, orange etc. To do this just go to extension's settings page and select the icon you like.
To access the options page:
1) Right-click on the extension's icon and select "Options":
2) Look at the bottom of the options page and select the icon from the list: