Unfortunately i did have to add some tiny Extra.less Template codes. Just for post link colors, and Bookmarks search color text font. But these tiny codes are optional to use and are added in the zip file. They are probably recommend though!
When you download the XF2-2-Default-Styles.zip, you will receive all styles XML files, and a Text file with each Themes Extra.less code. Example: If you install the Dark Style XML, there will be a XF2.2 Dark style txt file with the matching styles code. If you wish to add the optional styles code, just copy and paste the code from the Text file and paste to your styles Extra.less Template.
I will release a few more style colors soon if these ones are actually OK! Enjoy.