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I don't disagree with the existing answers. The other answer (your additional tools) is to put the dark theme into the title, or cover art, or book blurb. We tend to think the document on our comp...
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#1: Initial revision
I don't disagree with the existing answers. The other answer (your additional tools) is to put the dark theme into the title, or cover art, or book blurb. We tend to think the document on our computer is 'the book' while forgetting there are other elements buyers will see before cracking the book.