Thank you for your message.
You can change the apperance of the UniGrid pager in file ~CMSAdminControls/UI/UniGrid/Controls/UniGridPager.ascx you can change the
And change it according to your needs. Also note you will have do remove/change the class of the link so it is displayed correctly.
Another note -> This will change all UniGrid which are all across the system (also in the UI).
Let me know how it works.