Stylesheet

The map of source patterns to their desired style attributes. Should be arranged in declaration order, as this order establishes the override order during reduction of the final rendering context.

The palette.

The accumulator for errors, as pairs of invalid patterns and exceptions. When non-null, patterns that fail compilation are excised from the result, and any relevant StylePatternExceptions are appended here; when null, the constructor will terminate abnormally (by raising a StylePatternException) upon encountering an invalid source pattern.

The original style rules to inject into the stylesheet, prior to adding defaults for missing system style classifiers. Should be arranged in declaration order, as this order establishes the override order during reduction of the final rendering context.