The icons used in the product details page are all in the directory images of the component.

The icons for the fields "description", "instructions" and "note" are all the same now.
Files are different for your convienence, they are named:

• description.png
• instructions.png
• note.png

Also the icon for the header called title.png is located here.

If you want differen one's you can overwrite these files with your one, keeping the same name.

Or you can change the file names with the ones you want to use in the file productbookdetails.php.

Standard file size for the icons is a width of 32px