User:Andrew/Typography
Typeface Styles
The typeface styles are allocated throughout the user interface s as follows.Conduct design activities using the design typeface. Implement the design using the corresponding system typeface.
Typeface point sizes correspond to actual typeface sizes at the default xorg 96 dpi setting, where 1 pt = 1/72 inch (0.35mm). A monospace version of the Content Body 1 typeface should be used for code content.
Typographic Category Examples
Window Title - Window Title
Menus - Menu bar, Popup menus
Content - Selection panel, Content Panel, Information Panel
Content Title - Category title, Panel popups title
Content Header - Section headers
Content Body 1 - Text content, Icon grid items, List items
Content Body 2 - Captions , tooltips
Properties and Tools - Property panel, Toolbar, Status bar
Color and Contrast
The text foreground and background color can be varied to provide additional hierarchical hints. Consult the Color guidelines for help on the use of color. The contrast between the foreground and background color must be sufficient to preserve legibility of the text. A minimum contrast ratio of 4.5:1 (calculated based on luminance values) is recommended. Text representing disabled may have a contrast ratio as low as 3.0:1.
Words per line
Limit to eight to ten words per line. For typographic categories that use an all caps typeface, limit to three or four words per line.
Exceptions
When the visual design calls for an area of exceptional focus, a larger typeface size. Where used, maintain all other typeface for the typographic category. For such exceptions to be effective, they must be rare.