Although I don't have a really good feel about the use of specific fonts from what I've read it is considered good to limit the number of fonts used in a document to two. One serif and one sans serif is fine. I have often read that serif fonts are considered better for the body of printed material and sans-serif is better for on line. I don't get these feelings about that, but I am not the most sensitive person.
Personally, I don't think I am very esthetically sensitive to what fonts are good for their particular uses. I use advice from others whom I think are better at making those discriminations than me. WRT to this, my big issues are with readability, size, clarity of text and contrast with the background. These are not issues for me personally with the new PF layout.
However, I am sensitive to color vision issues since several people in my family have issues with this.
Many design programs ways to chose colors that can mitigate at least some problems for people with color vision problems. The most common form is difficulty in discriminating red vs. green, but others exist. There are three color sensors in the eye: red, green, blue and each or all can get screwed up resulting in different color discrimination problems.
The
color schemes of many documents or websites can be selected to as a set of colors that are considered to work together well (good contrast, doesn't tire the eyes, etc.). There are frequently options for these sets of colors that work well with the most common color vision problems. Its kind of like an ADA thing.
Here is a link to an article on this. I am aware of this because I had to deal with several accessibility issues (but not color vision) in some jobs.
WRT to
garish vs. non-garish colors and their uses. I like Edward Tufte's advise on this. He has several great books on these issues. I would start with number 1.
- Tufte, Edward R (2001) [1983], The Visual Display of Quantitative Information (2nd ed.), Cheshire, CT: Graphics Press, ISBN 0-9613921-4-2.
- Tufte, Edward R (2001b) [1990], Envisioning Information, Cheshire, CT: Graphics Press, ISBN 0-9613921-1-8.
- Tufte, Edward R (1997), Visual Explanations: Images and Quantities, Evidence and Narrative, Cheshire, CT: Graphics Press, ISBN 0-9613921-2-6.
- Tufte, Edward R (2006), Beautiful Evidence, Cheshire, CT: Graphics Press, Bibcode:2006beev.book.....T, ISBN 0-9613921-7-7.
As I remember, he really likes more calm (pastel-ish?) colors for certain uses like
maps and
backgrounds. I believe garish colors are for attracting attention and creating more contrast.