Yes. if you are running a multi-color configuration (blue, green, yellow etc), you must import the XMLs from the /child-style/ folder over each variation. If you are only using a single color, you may ignore this notice.
Sleek uses the Blue style as the master version. This should always be used at the top level theme, with other colors imported below it.
This update brings compatibility with the latest Xenforo 2.2.7 Patch Level 1. Further, the theme file structure in all themes has changed. It is important you must upload all files in your download package and overwrite if prompted.
Notice on One-Click Archive imports
This will be the final version before all Nulumia themes move to support importing via one-click archives. As such, you must still manually install/upgrade this theme by unzipping & uploading files, then importing the XML over your existing theme.
In the next version, you will have the option of downloading the archive format, or full file package which will include optional files, such as PSDs, readme.txt, etc.
Changelog All themes Framework Updated to Xenforo 188.8.131.52, merged all templates Updated modified templates to use latest Xenforo versions Moved all themes to use the new Xenforo asset system. All references to the @xf-themePath style property have been replaced with %ASSET%:style Misc...