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Bounty program for improvements to Tcl and certain Tcl packages.
Tcl 2019 Conference, Houston/TX, US, Nov 4-8
Send your abstracts to tclconference@googlegroups.com
or submit via the online form by Sep 9.

The "/background" page:

Return the background image.  If no background image is defined, a
built-in 16x16 pixel white GIF is returned.