Ülease get gtk3 css definition to be similar to gtk pixbuf!

[Frieder Saugschmerle <bluedxca93 googlemail com>]

Hi,
in cinnamon themes you can simply write: border-image: url("XXX.png") YZ;
on gtk2 it was:
engine "pixmap"
{
image
{
file = "XXX.png"
border = {YZ, YZ, YZ, YZ}
stretch = TRUE
}
}

Its very very time intensive to devellop a good gtk3 theme without having
the possibility to use a normal stretched bitmap as temporary working
solution. Clear that its slower than css definitons but why is that
disabled ? To hide the real speed of gtk3? Or are theme devellopers
technically bound to 2nd quality png2css tools even for very early theme
devellopment for gtk3?
On gtk2 there were so much themes and ways to design a theme on gtk3
version i do see the few existing themes see breaking every half year.
Css definitons for more complex borders, background etc. changes from time
to time . What to do??The step from gtk3.2 to 3.6 was horrible, now (
3.8-3.16) its luckily not as big but also miss a good reference/knowledge
base.Its better to have a slow theme working stable than a fast flat one
without any creativity in my opinion.

Please do not the current garbage, meaning no 2nd inline borders, no gtk3
scrollbar handles, no easy background/border tiling continue in future.

This is a real issue, bug and problem. Concerning both app developpment and
the core functionality of gtk3. Thats why i did post it twice. Only to
highlight the importnace of a menaingful small feature Not something to
write on a wishlist or a feature request. Assume its possible to do with a
simple gtk3 engine, if they haven`t been even droppped.
regards bluedxca93