fix(icon): 增加对比度

src/assets/icons/arrow-top.svg

@@ -3,8 +3,8 @@
 			Created with Pixso.
 	</desc>
 	<g clip-path="url(#clip5_8)">
-		<circle id="椭圆 1" cx="128.000000" cy="128.000000" r="128.000000" fill="#E0DBCE"/>
-		<ellipse id="椭圆 2" cx="128.000015" cy="128.000000" rx="115.000015" ry="114.999985" fill="#E0DBCE"/>
+		<circle id="椭圆 1" cx="128.000000" cy="128.000000" r="128.000000" fill="#FAF7E8"/>
+		<ellipse id="椭圆 2" cx="128.000015" cy="128.000000" rx="115.000015" ry="114.999985" fill="#FAF7E8"/>
 		<ellipse id="椭圆 2" cx="128.000015" cy="128.000000" rx="119.000015" ry="118.999985" stroke="#4B5366" stroke-width="8.000000"/>
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