LiveJournal uses a standard set of icons for specific pages that are distributed through the htdocs/img directory. The cgi-bin/imageconf.pl file handles the configuration for these images. Each image is configured as an associative array in perl, setup with attributes for each file. Text for alt attributes can be English-stripped, so the text is pulled from the language file.

cgi-bin/imageconf.pl is provided. Don't change that. But go ahead and add a new file, imageconf-local.pl beside it in the same format, which imageconf.pl will find and use.