ellipse-to-bezier, rect-to-bezier and rect-to-polyline are now drawn
pixel by pixel at 16 and 22 px, with the 1 px lines and hollow handles
of the line tool, and follow the theme's text color. The polyline is
simpler: at menu size the three-segment line with a handle on every
corner was too much detail to read, so it is now two segments rising
to a peak with a handle at each foot. Andre agreed to the redraw under
GPL-2.0-or-later.
Part of #1269.
Each folder now holds icons from one source: qet/ for QET's own SVGs,
breeze/ for KDE Breeze (with breeze/added/), flags/, colors/, and
themes/ for script output (with themes/generated/). The unused
128x128/terminalstrip.svg is removed. The generator, qrc files,
qeticons.cpp and ico/copyright follow the new paths. ico/README.md
lists each folder's source, script and license.
Part of #1269.