of an extremely small minority. We waited for a few years to get these options.
Personally IMO they are great. Many don't like the color blue used in the text, but being colorblind I can live with it as long as I can read the words.
I noticed a recent change in this forums style, I'm not sure I like it. I'm used to the mini tree view below each post and was lost in the new format. HOWEVER I found that going to the forum preferences (top left of the page) allowed tree view to be turned back on, although it now is a more visual style (big mistake, just like XP and Vista.) There are actually now three choices for viewing the forums (flat, threated, and tree,) Visually impaired users aren't going to like the new threaded or tree view one bit. I haven't tried flat view, but they'll probably have to use it.

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