Thanks Tiziano for explaining the background. I simply created the icon using Gimp (http://www.gimp.org/).
Base 64 encoding I did with perl: perl -MMIME::Base64 -e 'local $/; print encode_base64 <>' iconExternalLink.gif -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To view this discussion on the web visit https://groups.google.com/d/msg/tiddlywiki/-/FZHY-8IMJQIJ. To post to this group, send email to tiddlywiki@googlegroups.com. To unsubscribe from this group, send email to tiddlywiki+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/tiddlywiki?hl=en.