类型 PathStyle
API 文档由 Go 源码生成，内容为英文。
type PathStyle struct {
Fill Color
Stroke Color
StrokeWidth float32
FillRule PathFillRule
Cap StrokeCap
Join StrokeJoin
}PathStyle describes a path fill and/or stroke. StrokeWidth is measured in logical pixels after the view-box transform. Zero-alpha colors are skipped.