YosembiancePL is forked Yosembiance GTK+ theme.
Changes compared to the original
[li]Accent color is changed from orange to logan.[/li]
[li]Reworked close, minimize, maximize and unmaximize icons.[/li]
[li]Windows borders are rectangular.[/li]
Theme is tested and works on Ubuntu 14.04. Probably works on Ubuntu 16.04.
Feel free to report for bugs and test on other platforms.