On my T62 I can see the text for both password when connecting wirelessly and when deleting a book that I had problems with. Basically any screen that uses the light blue will be a problem.
I thought I had a work around to see the text on these screens if I couldn't get the same message on my Nexus 7. I am using Screenshot ER and can get a color screenprint from eink. I took on that used light blue and the particular light blue you are using barely shows up there either. Here's one and if you look very carefully you can see the text on the top of the screen, but it's difficult. You can see the CC icon in color so the pic has color. Weird.
