def validate_values(values)
      values.each do |key, value|
        if value.kind_of?(Hash)
          validate_values(value) # recursive call
        else
          validate_key(key, value)
        end
      end
    end
def validate_values(values)
      values.each do |key, value|
        if value.kind_of?(Hash)
          validate_values(value) # recursive call
        else
          validate_key(key, value)
        end
      end
    end
Make sure the paths/colors are valid