This update for libpng12 fixes the following issues:
png_do_quantize via
malformed palette index (bsc#1254157){
"binaries": [
{
"libpng12-compat-devel": "1.2.57-150000.4.3.1",
"libpng12-devel-32bit": "1.2.57-150000.4.3.1",
"libpng12-devel": "1.2.57-150000.4.3.1",
"libpng12-0": "1.2.57-150000.4.3.1",
"libpng12-0-32bit": "1.2.57-150000.4.3.1",
"libpng12-compat-devel-32bit": "1.2.57-150000.4.3.1"
}
]
}