setBackgroundColor

Examples of valid color values:

• Hex

• #fff (RGB)

• #ffff (ARGB)

• #ffffff (RRGGBB)

• #ffffffff (AARRGGBB)

• RGB

• rgb\(([\d]+),\s*([\d]+),\s*([\d]+)\)

• e.g. rgb(255, 255, 255)

• RGBA

• rgba\(([\d]+),\s*([\d]+),\s*([\d]+),\s*([\d.]+)\)

• e.g. rgba(255, 255, 255, 1.0)

• HSL

• hsl\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%\)

• e.g. hsl(200, 20%, 50%)

• HSLA

• hsla\((-?[\d.]+),\s*([\d.]+)%,\s*([\d.]+)%,\s*([\d.]+)\)

• e.g. hsla(200, 20%, 50%, 0.5)

• Color name

• Options are listed in SkParseColor.cpp

• Similar to CSS Color Module Level 3 keywords, but case-sensitive.

• e.g. blueviolet or red

Note: Hex format with alpha takes AARRGGBB or ARGB, not RRGGBBAA or RGB.