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removeStyleName ...
Is there a way to remove all the style names that may have been applied?
As compared to removing any style that was applied (which means I have to track what styles are applied)
Something that removes anything/everything I may have applied to a component?
Component.getStyleName() will give you all custom defined style names so just use
Component.removeStyleName(Component.getStyleName());
to remove all user added styles.
Even simpler, you can use Component.setStyleName(null) or Component.setStyleName(""). These too remove only user styles, not those set by the framework.