Provide more "useable" text sizes in the Reading pane/panel
For my eyes, the first four text size options are so small, they have no practical value. Even the fifth one is marginal in that regard.
I would really like to see the first four or five small sized eliminated and four to five new sizes added between what are now text size options six and eight on the text size selection bar. For me, this would provide a much more useful range of size options.
John Goodman commented
Maybe pinch to zoom would be the solution? I like the small sizes myself...