The problem of echarts Map of China

the echarts map of China introduced in the component wants to change the background color of the map to the color it wants, but it doesn"t work.
if I delete the background color of the visualMap, the background color of the map will become gray

visualMap



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Mar.05,2021

visualMap: {

                min: 0,
                max: 100,
                left: 'left',
                top: 'bottom',
                text: ['', ''], // 
                calculable: true,
                inRange: {
                    color: ['-sharpfff', '-sharp000', 'pink']
                }
       inrangemin-max
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1be85e4-3190d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be85e4-3190d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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