[murraypaul]

Some quick feedback.
Seems professionally put together, and sensibly laid out.
Like the various margin settings and the justification option.
Not enough fonts or font size settings, and biggest size is too small.
While the colour selector is flexible, it is also fiddly, could do with a bank of standard colours to select from as well.
Page turns have an annoying delay, it is like reading on an eInk device.
Night mode does not interact well with the colour selector. Night mode seems to force greyscale, so I can't have yellow on black, which is my preferred settings. If I choose yellow on black non-night mode, the screen flashes to white when switching pages. (More eInk!)
At this point, for non-DRM ePub I don't see myself using this over Stanza, which is a lot more flexible, but for DRM ePub it is much easier than txtr to get books into, and generally designed better as an iOS app.
So I think this would replace txtr, but not yet replace Stanza.