code: @Nullable
    public static CSSDeclarationList readFromStream (@Nonnull @WillClose final InputStream aIS,
                                                     @Nonnull final Charset aCharset,
                                                     @Nonnull final ECSSVersion eVersion)
    {
      return readFromReader (StreamHelper.createReader (aIS, aCharset),
                             new CSSReaderSettings ().setCSSVersion (eVersion));
    }
docs: Read the CSS from the passed {@link InputStream}.
  
  @param aIS
  The input stream to use. Will be closed automatically after reading
  - independent of success or error. May not be <code>null</code>.
  @param aCharset
  The charset to be used. May not be <code>null</code>.
  @param eVersion
  The CSS version to use. May not be <code>null</code>.
  @return <code>null</code> if reading failed, the CSS declarations
  otherwise.
  @since 3.7.4