I like 2 the best. I like the ones after 22 much less than the ones where the letters are separate, but they all look pretty nice. I think there are times when you want a logo with letters and a time when you don't so we should have at least 2 forms. About dyslexia concerns -- Dyslexia is a catch-all sort of phrase which often means no more than 'the child cannot read', but we now know a lot more about what causes dyslexia in the majority of cases than we used to. See Stanislas Dehaene Reading in the Brain. https://www.amazon.com/Reading-Brain-New-Science-Read/dp/0143118056 -- a pretty amazing read which I can recommend just for fun, even if you don't have any particular interest in dyslexia. At any rate, contrary to what used to be thought, most dyslexics don't have problems telling the shapes of letters. It's the part of the brain where the shapes are converted into sounds -- which we now can locate with MRI -- where the problem occurs, which goes a long way to explaining why it is that dyslexia is a much greater problem for the children of England and France than those of Germany or Italy. Indeed you find children who aren't dyslexic in Italian or German, but who suffer from dyslexia when trying to read English or French, which they can speak, but not read. If your language is characterised by both of these one-to-one mappings 'this sound is made by this letter/these letter combinations and only by this letter/these letter combinations; and this letter/these letter combinations make this sound, and only this sound' dyslexia will be a much smaller problem for your culture than if your language only has one of these mappings -- such as Swedish, where if you see a word, you mostly know how to pronounce it, but if you hear one, ah, there are often many different spellings which could be responsible for the sounds you heard. And things are worst for those languages where many sounds can be represented multiple ways, and if a word is unfamiliar to you, you _don't_ automatically know how to pronounce it, until you ask somebody. The bottom line is that you don't have to worry about icons being problems for dyslexics. If they are going to have problems it will be the shield form that is more likely to cause it -- because nobody really expects you to read icons. But if the shield form causes them problems, they are going to have the devil of a time reading the tox output in the first place, at least if they read it in English. So I wouldn't worry. Laura