Just to comment further on Bruno's correct answer, the reason you need that option in this case is that the default ODS style for HTML output is HTMLBlue. In that particular style, the ATTRPRIORITY is explicitly set to COLOR, which means all of the style colors are exhausted before moving to the next marker symbol or line pattern. The option on the ODS GRAPHICS statement overrides the style setting. Most of the other ODS styles do not set this option, but setting the option on the ODS GRAPHICS statement will guarantee the behavior you want.
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