VB处理一个文本，求思路
有如下一个文本文件，我只关心color下面的那些。想写一个程序，读入这个文本，然后可以显示每个关键字对应的颜色和RGB值，如polygon->day->background，
然后在它右边写一个按钮，点击按钮可以屏幕取色，将取到的颜色替代目前的颜色值
最后保存文件。
先问下用什么方法可以比较方便做到？
程序代码：
{
"vesion": "2.0",
"enableDirectionalRoadLabel": 1,
"roadWidth": {
"highway": [24, 20, 18, 16, 14, 12, 10, 8, 6, 4, 1, 1],
"expWay": [20, 18, 16, 12, 10, 8, 6, 4, 3, 1, 1, 1],
"arterial": [20, 18, 16, 12, 10, 8, 6, 4, 3, 1, 1, 1],
"localMajor": [18, 14, 14, 8, 6, 3, 1, 1, 1, 1, 1, 1],
"local": [12, 8, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1]
},
"color": {
"buildingAndTmcEdge": {
"day": {
"building" : "c5c1c1",
"tmc" : "ffffff"
},
"night": {
"building" : "324f64",
"tmc" : "ffffff"
}
},
"polygon": {
"day": {
"background" : "FFFFCE",
"fourColorOne" : "FFDAB4",
"community" : "FFDAB4",
"onground" : "FFDAB4",
"fourColorTwo" : "FFDAB4",
"fourColorThree": "FFDAB4",
"school" : "F7DB9C",
"fourColorFour" : "FFDAB4",
"hospital" : "F7DB9C",
"greenArea" : "7BCB6B",
"water" : "52AEEF",
"closedArea" : "FFDAB4",
"underground" : "FFDAB4",
"park" : "FFDAB4",
"building" : "FAF9F5",
"subwayStation" : "F89F7C"
},
"night": {
"background" : "081C29",
"fourColorOne" : "FFDAB4",
"community" : "FFDAB4",
"onground" : "FFDAB4",
"fourColorTwo" : "FFDAB4",
"fourColorThree": "FFDAB4",
"school" : "183039",
"fourColorFour" : "FFDAB4",
"hospital" : "183039",
"greenArea" : "213818",
"water" : "004D6B",
"closedArea" : "FFDAB4",
"underground" : "FFDAB4",
"park" : "FFDAB4",
"building" : "324f64",
"subwayStation" : "f89f7c"
}
},
