A contribution to the ever growing collection of tk widgets, currently it includes:

tk::cloth - an oo interface to tk::canvas
tk::tframe - a frame with a title
tk::numentry - an entry widget that accepts numbers and has up/down
buttons for in/decrement.
tk::firebutton - button that keeps invoking command when pressed
tk::pane and tk::progressbar are no longer part of this distribution, because they are included in standard perl/tk since 800.016.