Screenshots

You can have one icon in front of your post title thanks to the get_cat_icon() function (click on the image to view live example of these screenshots taken from The World of Office Tips, Tricks and Tutorials) :

Or more icons :

You can see that there are 2 icons here ;it’s because the post belongs to 2 categories

Here is another example from the Medium is Not Enough TV blog :

You can even use CSS to customize the display of your icons with the ‘class’ parameter of get_cat_icon(). Here is an example with icons on the right :

In the sidebar, you can display icons on the left or on the right of the category names, or you can display only icons, thanks to the put_cat_icons() function or the widget (that you must activate) :

Here is another sidebar :

Screenshots of the plugin panel :

The Plugin’s Options

The plugin management page

Select an icon to assign it to a category

The Template Code in Action :
it shows you where to paste the function get_cat_icon() and put_cat_icons()
in your theme files or patch them automatically if possible.

Use the widget to display category icons in the sidebar