interesting question... If it can be done, then you have to find the icon folder in Moodle AND your theme and change the contents of the folder. Make sure all the icons you want to use have exactly the same names. Most standard themes use the moodle/pix folder but many specialist themes use their own theme/themname/pix folder as well, or instead of. If you only want to change one or two icons, then just take out the ones you do not want, replace them with ones you do want.

Make sure you clear your cache or temp internet files after you have done it though. You can make a change like that and it does not appear because of the way in which Moodle uses its cache.

Hi,

I'm also interested in what I think was really the question here:

How to change the icon in one activity or resource - in stead of how to overwrite the icon for one type of activity or resource. Would be very nice to have this feature, as sometimes the same resource-activity have different content.

Any ideas?

TIA

Daniel

The hacky way:

You can add inline css styles in a label to display your own icon. This will work only with this instance of your course and will break if the course is moved. I tested this in 1.9.5. I can't say if it would work in any other version. Steps

1. Upload the image into your course. Copy the full url for future reference - eg /file.php/11/my_icons/special.png
2. On your course page open the page source (View> Page Source). Search for the name of your activity. The line above this should start with something like <li class="activity quiz" id="module-21"... Take note of the id, in this case id="module-21"
3. Use the Add a resource drop-down to Add a label. Switch to HTML edit mode and write the following into the label text, changing the id and image url as appropriate.
   <style type="text/css">
  li#module-21 { 
    padding-left:30px;
    height:50px;
    background:url(/file.php/11/my_icons/special.png) no-repeat left;
  }
  li#module-21  img.activityicon {
    padding:20px;
    visibility:hidden;
  }
</style>
4. Notes: This works well with a 50px by 50px image, change the padding for other size images. Save a copy of the above code becuase when you come back and update the label, the style will get cleared.

Good luck