静态地图功能列表

Question

我正在尝试自定义Google静态地图，以便地图完全以灰度显示。它主要是工作，但有一些地图“功能”，我似乎无法选择和风格。特别是，有（似乎是）高速公路坡道标签，绿色背景和白色文字，我想制作黑色和白色，或完全隐藏。这是一个例子：

http://maps.googleapis.com/maps/api/staticmap?key=AIzaSyADV4Wfi9-4ET5GG52Cw_l0_Bkt8W5vwvM&center=43.597586,-79.746689&zoom=14&markers=icon:http://www.xmeasures.com/images/planMapPin.png|43.597586,-79.746689&format=png32&sensor=false&size=480x480&scale=4&markers=color:black|&maptype=roadmap&style=feature|element:geometry|hue:0xwhite|saturation:-100%|lightness:100|visibility:off&style=feature:road|element:geometry|hue:0xblack|saturation:-100%|lightness:-20|visibility:on&style=feature:road.path|element:labels|hue:0xblack|saturation:-100%|lightness:-20|visibility:off&style=feature:labels|element:geometry|hue:0xblack|saturation:-100%|lightness:-20|visibility:off&style=feature:water|element:geometry|hue:0xblack|saturation:-100%|lightness:-40|visibility:on&style=element:labels.text.stroke|visibility:off&style=element:labels.text.fill|visibility:off&style=feature:road|hue:0xblack|saturation:-100%|lightness:-100|element:labels.text.fill|visibility:on&style=feature:transit|visibility:off&style=feature:poi|visibility:off&style=feature:landscape|visibility:off&key=AIzaSyADV4Wfi9-4ET5GG52Cw_l0_Bkt8W5vwvM|

我搜索了一个完整的静态地图功能列表，但我似乎只能找到一般说明。是否存在完整的功能列表？