LM has a lot of themes, but once I started mixing sub-themes like the first image shows I got strange inconsistent results some times, thats why I asked the OP to try a consistent theme without mixing sub-themes.
And that's what I did. I assumed you understood how the simple theme selection thingy works. :) If you choose Mint-Y like I did, it will choose the Mint-Y theme (dark or light) for everything, including the icons.