We can control the Text Size of the Sidebar, which is a tremendous help to ageing eyes, but we cannot do the same to the Reading List Sidebar.
It would be wonderful if this was possible: either by linking that Sidebar Text Size preference variable (in General > Appearance) to both or have a separate one below the sidebar preference specifically for the reading list.
The other improvement could be to have an option to wrap the file names of the reading list (perhaps even an option to specify how many lines of wrapping) since many academic papers have very long names.
Thanks for thinking to make the reading list manually sortable!