NOTE: Users must download and extract this new file to their system directory, otherwise GUI themes will not work with the latest version of the core.
While doing this, I also updated the core options to v1.3 format, tweaked some of the core option strings, and fixed a naming error - one of the cursor response options was previously named 'cubic', when it should be 'quadratic'.
This PR updates the libretro auxiliary data bundle for compatibility with the recent 2.1.0 version bump. This includes theme + all engine data files. (This auxiliary data bundle is referenced in the documentation: https://docs.libretro.com/library/scummvm/#initial-configuration - with the following download link: https://github.com/libretro/scummvm/raw/master/backends/platform/libretro/aux-data/scummvm.zip)
NOTE: Users must download and extract this new file to their system directory, otherwise GUI themes will not work with the latest version of the core.
While doing this, I also updated the core options to v1.3 format, tweaked some of the core option strings, and fixed a naming error - one of the cursor response options was previously named 'cubic', when it should be 'quadratic'.