Import:
HippoCanvasTheme => ShellTheme
HippoCanvasThemeImage => ShellThemeImage
HippoCanvasStyle => ShellThemeNode
ShellThemeContext is a new class managing the theme for a stage and
global properties like resolution.
test-theme.c is a newly written test program to do verification of the
style matching and property handling rules.
Various changes are made in the import:
- Comprehensive reindentation
- guint32 pixels replaced with ClutterColor
- General pseudo-class support added
- Old-fashioned (non-bordered) background image support added, though
with no support for repeat, etc.
- Bug fixes for problems revealed by test program
