There’s some edge cases which seem problematic. One example:
ComboBoxBiew has the following:
            input = new TextInput();
            input.className = "ComboBoxTextInput";          
            button = new TextButton();
            button.className = "opt_org-apache.royale-html-ComboBox_Button";

Input and button are both external to the view class, but are managed by the 
view class. On the other hand, there is a chance that the user might wan to 
style them. I’m not sure whether className or typeNames is more appropriate 


> On Feb 23, 2018, at 11:03 AM, Gabe Harbs <> wrote:
> I’ll help.
>> On Feb 23, 2018, at 10:50 AM, Alex Harui <> wrote:
>> Quick note before I shut down for the night.
>> UIBase has both a typeNames and className property.  TypeNames is used to
>> emulate Flex-like type selectors in the CSS lookup.  It should be set in
>> the constructor and never set from outside the class.  There are a few
>> classes in Basic and lots of classes in MDL that should be upgraded to set
>> typeNames in the constructor.  Subclasses can append to the base class's
>> typeNames
>> className is the opposite.  It should never be set inside the component's
>> class.  It is for users of that component to set styles on the component.
>> Can we get a volunteer to clean this up?
>> Thanks,
>> -Alex

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