OpenTracks/src/main/res/drawable/ic_button_stop_pressed.xml

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    xmlns:aapt="http://schemas.android.com/aapt"
    android:width="82dp"
    android:height="82dp"
    android:viewportWidth="125"
    android:viewportHeight="125">
    <path
        android:fillColor="#00000000"
        android:pathData="M2.516,63.009a60.239,59.73 134.856,1 0,119.967 -1.017a60.239,59.73 134.856,1 0,-119.967 1.017z"
        android:strokeWidth="5.0319"
        android:strokeColor="#555" />
    <path android:pathData="M62.5,62.5m-0,-50a50,50 0,1 1,-0 100a50,50 0,1 1,-0 -100">
        <aapt:attr name="android:fillColor">
            <gradient
                android:endX="62.5"
                android:endY="112.5"
                android:startX="62.5"
                android:startY="12.5"
                android:type="linear">
                <item
                    android:color="#FF404040"
                    android:offset="0" />
                <item
                    android:color="#FF555555"
                    android:offset="1" />
            </gradient>
        </aapt:attr>
    </path>
    <path
        android:fillColor="#dbdbdb"
        android:pathData="M53.02,54.02h17.46v17.46h-17.46z"
        android:strokeWidth="1.0402"
        android:strokeColor="#414141" />
</vector>