code: def element_text_color_should_be(self, locator, expected):
  		
  
  		self._info("Verifying element '%s' has text color '%s'" % (locator, expected))
  		self._check_element_css_value(locator, 'color', expected)
docs: Verifies the element identified by `locator` has the expected
  		text color (it verifies the CSS attribute color). Color should be in
  		RGBA format.
  
  		Example of rgba format: rgba(RED, GREEN, BLUE, ALPHA)
  
  		| *Argument* | *Description* | *Example* |
  		| locator | Selenium 2 element locator | id=my_id |
  		| expected | expected color | rgba(0, 128, 0, 1) |