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Talk:Font usability design guidelines
This article provides some useful advice regarding the usability of fonts in mobile applications. Fonts differ in terms of font face, size and color and this article provides advice about choosing the correct options for each of these attributes. The article points out several pitfalls and usability problems relating to fonts which can occur. These include: custom fonts which don’t render correctly; fonts that are rendered too small or too large for the current screen resolution; and fonts that are difficult to read because the font color is not sufficiently different from the background color (resulting in text which gets lost in the background).
This article helps to highlight the important effect that font choices can have on the usability of an application. A general theme running through the article is to keep your font choices as simple as possible. Use plain backgrounds as much as possible. Make sure that there is a sufficient contrast between the font color and the background color. Make text large enough to read, without making it so large that it doesn’t fit comfortably on the screen. And finally, where possible, stick to the standard system fonts for the sake of consistency.
The easiest way to check whether your font choices are ok is to do some simple usability testing. Check whether users can distinguish text, and that it does not detract from the usability of the application in question.