Jesper van Engelen

Enhance your admin overview screens by displaying icons instead of text labels in the table header and footer.
The Icons Add-on for Admin Columns adds functionality for displaying icons on the posts, users, media and comment overview screens, and any other screens Admin Columns Supports. It supports all column types that have a label! You can choose to select one of WordPress’ native <a href="https://developer.wordpress.org/resource/dashicons/" rel="nofollow ugc">Dashicons</a>, upload a new icon image, select an icon from your media library and choose a custom URL to retrieve the icon from.
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This plugin is an add-on for <a href="https://wordpress.org/plugins/codepress-admin-columns/" rel="ugc">Admin Columns</a>.
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Admin Columns – Icons Add-on

Use icons instead of text labels in column headers on post, user, media and other admin pages. Extension for Admin Columns.

keith_wp

Lightweight plugin to simply customize your Users screen, letting you change which columns are shown and the order in which they are displayed.

Adjust Users Screen

Alter the Users screen in the admin, re-ordering the columns and turning individual columns on or off.

Admin Columns – Icons Add-on vs Adjust Users Screen