安装了react-icons后，引用的svg icon不能用className修改样式。需要使用IconContext.Provider
javascript
<IconContext.Provider value={{ color: "green"， attr: {fill: "#A68BFA", stroke: ""} }}>
<FaHeart className="inline-block w-[20px] h-[20px]"/>
</IconContext.Provider>value传参结构为：
javascript
interface IconContext {
color?: string;
size?: string;
className?: string;
style?: React.CSSProperties;
attr?: React.SVGAttributes<SVGElement>;
}attr为：
javascript
interface SVGAttributes<T> extends AriaAttributes, DOMAttributes<T> {
// React-specific Attributes
suppressHydrationWarning?: boolean | undefined;
// Attributes which also defined in HTMLAttributes
// See comment in SVGDOMPropertyConfig.js
className?: string | undefined;
color?: string | undefined;
height?: number | string | undefined;
id?: string | undefined;
lang?: string | undefined;
max?: number | string | undefined;
media?: string | undefined;
method?: string | undefined;
min?: number | string | undefined;
name?: string | undefined;
style?: CSSProperties | undefined;
target?: string | undefined;
type?: string | undefined;
width?: number | string | undefined;
// Other HTML properties supported by SVG elements in browsers
role?: AriaRole | undefined;
tabIndex?: number | undefined;
crossOrigin?: CrossOrigin;
// SVG Specific attributes
accentHeight?: number | string | undefined;
accumulate?: "none" | "sum" | undefined;
additive?: "replace" | "sum" | undefined;
alignmentBaseline?:
| "auto"
| "baseline"
| "before-edge"
| "text-before-edge"
| "middle"
| "central"
| "after-edge"
| "text-after-edge"
| "ideographic"
| "alphabetic"
| "hanging"
| "mathematical"
| "inherit"
| undefined;
allowReorder?: "no" | "yes" | undefined;
alphabetic?: number | string | undefined;
amplitude?: number | string | undefined;
arabicForm?: "initial" | "medial" | "terminal" | "isolated" | undefined;
ascent?: number | string | undefined;
attributeName?: string | undefined;
attributeType?: string | undefined;
autoReverse?: Booleanish | undefined;
azimuth?: number | string | undefined;
baseFrequency?: number | string | undefined;
baselineShift?: number | string | undefined;
baseProfile?: number | string | undefined;
bbox?: number | string | undefined;
begin?: number | string | undefined;
bias?: number | string | undefined;
by?: number | string | undefined;
calcMode?: number | string | undefined;
capHeight?: number | string | undefined;
clip?: number | string | undefined;
clipPath?: string | undefined;
clipPathUnits?: number | string | undefined;
clipRule?: number | string | undefined;
colorInterpolation?: number | string | undefined;
colorInterpolationFilters?: "auto" | "sRGB" | "linearRGB" | "inherit" | undefined;
colorProfile?: number | string | undefined;
colorRendering?: number | string | undefined;
contentScriptType?: number | string | undefined;
contentStyleType?: number | string | undefined;
cursor?: number | string | undefined;
cx?: number | string | undefined;
cy?: number | string | undefined;
d?: string | undefined;
decelerate?: number | string | undefined;
descent?: number | string | undefined;
diffuseConstant?: number | string | undefined;
direction?: number | string | undefined;
display?: number | string | undefined;
divisor?: number | string | undefined;
dominantBaseline?: number | string | undefined;
dur?: number | string | undefined;
dx?: number | string | undefined;
dy?: number | string | undefined;
edgeMode?: number | string | undefined;
elevation?: number | string | undefined;
enableBackground?: number | string | undefined;
end?: number | string | undefined;
exponent?: number | string | undefined;
externalResourcesRequired?: Booleanish | undefined;
fill?: string | undefined;
fillOpacity?: number | string | undefined;
fillRule?: "nonzero" | "evenodd" | "inherit" | undefined;
filter?: string | undefined;
filterRes?: number | string | undefined;
filterUnits?: number | string | undefined;
floodColor?: number | string | undefined;
floodOpacity?: number | string | undefined;
focusable?: Booleanish | "auto" | undefined;
fontFamily?: string | undefined;
fontSize?: number | string | undefined;
fontSizeAdjust?: number | string | undefined;
fontStretch?: number | string | undefined;
fontStyle?: number | string | undefined;
fontVariant?: number | string | undefined;
fontWeight?: number | string | undefined;
format?: number | string | undefined;
fr?: number | string | undefined;
from?: number | string | undefined;
fx?: number | string | undefined;
fy?: number | string | undefined;
g1?: number | string | undefined;
g2?: number | string | undefined;
glyphName?: number | string | undefined;
glyphOrientationHorizontal?: number | string | undefined;
glyphOrientationVertical?: number | string | undefined;
glyphRef?: number | string | undefined;
gradientTransform?: string | undefined;
gradientUnits?: string | undefined;
hanging?: number | string | undefined;
horizAdvX?: number | string | undefined;
horizOriginX?: number | string | undefined;
href?: string | undefined;
ideographic?: number | string | undefined;
imageRendering?: number | string | undefined;
in2?: number | string | undefined;
in?: string | undefined;
intercept?: number | string | undefined;
k1?: number | string | undefined;
k2?: number | string | undefined;
k3?: number | string | undefined;
k4?: number | string | undefined;
k?: number | string | undefined;
kernelMatrix?: number | string | undefined;
kernelUnitLength?: number | string | undefined;
kerning?: number | string | undefined;
keyPoints?: number | string | undefined;
keySplines?: number | string | undefined;
keyTimes?: number | string | undefined;
lengthAdjust?: number | string | undefined;
letterSpacing?: number | string | undefined;
lightingColor?: number | string | undefined;
limitingConeAngle?: number | string | undefined;
local?: number | string | undefined;
markerEnd?: string | undefined;
markerHeight?: number | string | undefined;
markerMid?: string | undefined;
markerStart?: string | undefined;
markerUnits?: number | string | undefined;
markerWidth?: number | string | undefined;
mask?: string | undefined;
maskContentUnits?: number | string | undefined;
maskUnits?: number | string | undefined;
mathematical?: number | string | undefined;
mode?: number | string | undefined;
numOctaves?: number | string | undefined;
offset?: number | string | undefined;
opacity?: number | string | undefined;
operator?: number | string | undefined;
order?: number | string | undefined;
orient?: number | string | undefined;
orientation?: number | string | undefined;
origin?: number | string | undefined;
overflow?: number | string | undefined;
overlinePosition?: number | string | undefined;
overlineThickness?: number | string | undefined;
paintOrder?: number | string | undefined;
panose1?: number | string | undefined;
path?: string | undefined;
pathLength?: number | string | undefined;
patternContentUnits?: string | undefined;
patternTransform?: number | string | undefined;
patternUnits?: string | undefined;
pointerEvents?: number | string | undefined;
points?: string | undefined;
pointsAtX?: number | string | undefined;
pointsAtY?: number | string | undefined;
pointsAtZ?: number | string | undefined;
preserveAlpha?: Booleanish | undefined;
preserveAspectRatio?: string | undefined;
primitiveUnits?: number | string | undefined;
r?: number | string | undefined;
radius?: number | string | undefined;
refX?: number | string | undefined;
refY?: number | string | undefined;
renderingIntent?: number | string | undefined;
repeatCount?: number | string | undefined;
repeatDur?: number | string | undefined;
requiredExtensions?: number | string | undefined;
requiredFeatures?: number | string | undefined;
restart?: number | string | undefined;
result?: string | undefined;
rotate?: number | string | undefined;
rx?: number | string | undefined;
ry?: number | string | undefined;
scale?: number | string | undefined;
seed?: number | string | undefined;
shapeRendering?: number | string | undefined;
slope?: number | string | undefined;
spacing?: number | string | undefined;
specularConstant?: number | string | undefined;
specularExponent?: number | string | undefined;
speed?: number | string | undefined;
spreadMethod?: string | undefined;
startOffset?: number | string | undefined;
stdDeviation?: number | string | undefined;
stemh?: number | string | undefined;
stemv?: number | string | undefined;
stitchTiles?: number | string | undefined;
stopColor?: string | undefined;
stopOpacity?: number | string | undefined;
strikethroughPosition?: number | string | undefined;
strikethroughThickness?: number | string | undefined;
string?: number | string | undefined;
stroke?: string | undefined;
strokeDasharray?: string | number | undefined;
strokeDashoffset?: string | number | undefined;
strokeLinecap?: "butt" | "round" | "square" | "inherit" | undefined;
strokeLinejoin?: "miter" | "round" | "bevel" | "inherit" | undefined;
strokeMiterlimit?: number | string | undefined;
strokeOpacity?: number | string | undefined;
strokeWidth?: number | string | undefined;
surfaceScale?: number | string | undefined;
systemLanguage?: number | string | undefined;
tableValues?: number | string | undefined;
targetX?: number | string | undefined;
targetY?: number | string | undefined;
textAnchor?: string | undefined;
textDecoration?: number | string | undefined;
textLength?: number | string | undefined;
textRendering?: number | string | undefined;
to?: number | string | undefined;
transform?: string | undefined;
u1?: number | string | undefined;
u2?: number | string | undefined;
underlinePosition?: number | string | undefined;
underlineThickness?: number | string | undefined;
unicode?: number | string | undefined;
unicodeBidi?: number | string | undefined;
unicodeRange?: number | string | undefined;
unitsPerEm?: number | string | undefined;
vAlphabetic?: number | string | undefined;
values?: string | undefined;
vectorEffect?: number | string | undefined;
version?: string | undefined;
vertAdvY?: number | string | undefined;
vertOriginX?: number | string | undefined;
vertOriginY?: number | string | undefined;
vHanging?: number | string | undefined;
vIdeographic?: number | string | undefined;
viewBox?: string | undefined;
viewTarget?: number | string | undefined;
visibility?: number | string | undefined;
vMathematical?: number | string | undefined;
widths?: number | string | undefined;
wordSpacing?: number | string | undefined;
writingMode?: number | string | undefined;
x1?: number | string | undefined;
x2?: number | string | undefined;
x?: number | string | undefined;
xChannelSelector?: string | undefined;
xHeight?: number | string | undefined;
xlinkActuate?: string | undefined;
xlinkArcrole?: string | undefined;
xlinkHref?: string | undefined;
xlinkRole?: string | undefined;
xlinkShow?: string | undefined;
xlinkTitle?: string | undefined;
xlinkType?: string | undefined;
xmlBase?: string | undefined;
xmlLang?: string | undefined;
xmlns?: string | undefined;
xmlnsXlink?: string | undefined;
xmlSpace?: string | undefined;
y1?: number | string | undefined;
y2?: number | string | undefined;
y?: number | string | undefined;
yChannelSelector?: string | undefined;
z?: number | string | undefined;
zoomAndPan?: string | undefined;
}