avoid using BLI_array_* macros for uv reset.


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@56646 954f8c5b-7b00-dc11-b283-0030488c597c
Fix for #35286, 'Reset to Default Theme' makes some node titlebars go black. These node theme colors were set in init_userdef_do_versions, but missing in ui_theme_init_default. Also adjusted the group input/output colors there to match the colors set in do_versions.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@56647 954f8c5b-7b00-dc11-b283-0030488c597c