Restore some inadvertently overwritten oxygen icons.

I did not notice that all icons in math/ are shared and in a0895046 I have
overwritten some of them. I am restoring them in the proper subdir.
Two of them, namely font.svgz and frac.svgz, give warnings that should
be addressed. Anyway, I see that these icons use fonts. They are better
substitued with paths (a menu entry in inkscape) because if the fonts
are missing on a system, the icons look different and, in general, they
may look ugly.

diff --git a/lib/images/math/oxygen/font.svgz b/lib/images/math/oxygen/font.svgz
new file mode 100644 (file)
index 0000000..9cbca46
Binary files /dev/null and b/lib/images/math/oxygen/font.svgz differ

diff --git a/lib/images/math/oxygen/frac-square.svgz b/lib/images/math/oxygen/frac-square.svgz
new file mode 100644 (file)
index 0000000..64d4279
Binary files /dev/null and b/lib/images/math/oxygen/frac-square.svgz differ

diff --git a/lib/images/math/oxygen/frac.svgz b/lib/images/math/oxygen/frac.svgz
new file mode 100644 (file)
index 0000000..721e727
Binary files /dev/null and b/lib/images/math/oxygen/frac.svgz differ

diff --git a/lib/images/math/oxygen/functions.svgz b/lib/images/math/oxygen/functions.svgz
new file mode 100644 (file)
index 0000000..3532c8b
Binary files /dev/null and b/lib/images/math/oxygen/functions.svgz differ

diff --git a/lib/images/math/oxygen/space.svgz b/lib/images/math/oxygen/space.svgz
new file mode 100644 (file)
index 0000000..69d776c
Binary files /dev/null and b/lib/images/math/oxygen/space.svgz differ

diff --git a/lib/images/math/oxygen/style.svgz b/lib/images/math/oxygen/style.svgz
new file mode 100644 (file)
index 0000000..30695ba
Binary files /dev/null and b/lib/images/math/oxygen/style.svgz differ