Behavior: Basic Psychology of the User - Foundations for Designing User-Centered Systems - page 96

Fig. 4.12 Example uses of visual encoding to highlight spelling mistakes. On the left, a mail
system underlines and makes the misspelled word appear in red; on the right, Microsoft Word
puts a wavy red line under the word
Fig. 4.13 The use of color and luminance on aircraft displays facilitates the finding of particular
information (this will be less apparent in b/w versions of this figure!)