Changing Font Size in the Header Bar in Blogger's Dynamic View Templates

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You'd think there is an easy way to change the size of the font on your Dynamic View's header bar. Oh wait, there is - the option to change your font size is very much there in your Template Designer (under Advanced - Header Bar). But let's be honest here. I have not seen this working. It never had any effect on my actual template, and no, not even on my preview page. Fortunately, there's a way to manually change the font size in the header bar, and here's how.