There are no instructions on this launcher whatsoever and it is very poorly constructed. I have wasted 3 hours just trying to figure out why on Earth your launcher won't finish installing 'Minecraft Assets' and thus far I have found no answers to this question on this website or off of it. It has stayed at 0% for three hours straight and I am just about done with this program if I still can't get an answer.
OS: Windows 8
TL: Latest version of the launcher from the download page. 4.283