I have created a script to build echo icon theme from a dir populated
by J5's script. And I found out some icons are different in .png and
.svg. For an incomplete list:
edit-copy
format-indent-less
format-indent-more
format-justify-center
format-justify-fill
format-justify-left
format-justify-right
utilities-terminal
font-x-generic
image-x-generic
text-x-generic-template
text-x-generic
x-office-document
Another issue is: the svg icons do not have consistent aspect and
dimension. For example: utilities-terminalL.svg is 443.79 x 166.59 as
in inkscape.
The script is attached. It will use echo_art under current dir as
source icon dir and Echo as destination dir. The index.theme is from
Tango Icon theme. Put it in Echo dir to make the theme usable.