（鸿蒙 app-vue）pages.json的tabbar配置项，iconWidth配置无效

鸿蒙下 app-vue pages.json的tabbar配置项，iconWidth配置无效：
"tabBar": {
"color": "#666666",
"selectedColor": "#E62129",
"borderStyle": "black",
"backgroundColor": "#FFFFFF",
"iconWidth": "80px",
"height": "55px",
"list": [
{
"pagePath": "pages/home/index/index",
"iconPath": "static/images/default/index_tabBar_icon_sy2@2x.png",
"selectedIconPath": "static/images/default/index_tabBar_icon_sy1@2x.png",
"text": ""
},
{
"pagePath": "pages/home/product/index",
"iconPath": "static/images/default/index_tabBar_icon_cf1@2x.png",
"selectedIconPath": "static/images/default/index_tabBar_icon_cf2@2x.png",
"text": ""
},
{
"pagePath": "pages/home/find/index",
"iconPath": "static/images/default/index_tabBar_icon_fx1@2x.png",
"selectedIconPath": "static/images/default/index_tabBar_icon_fx2@2x.png",
"text": ""
},
{
"pagePath": "pages/home/mine/index",
"iconPath": "static/images/default/index_tabBar_icon_wd1@2x.png",
"selectedIconPath": "static/images/default/index_tabBar_icon_wd2@2x.png",
"text": ""
}
]
}
iconWidth从40px调到80px都一样