overriding vanilla biomes in overworld

hi im wondering how to override the vanilla biomes, ive been able to change the generation but the biomes stay the same. am i going about this in the wrong order? {         "type": "minecraft:overworld",         "generator": {             "type": "noise",             "biome_soruce": {                 "type": "multi_noise",                 "biomes": [                     {                         "biome": "newdatapack:red",                         "parameters": {                             "temperature": [                                 -1,                                 0.5                             ],                             "humidity": 0,                             "continentalness": 0,                             "erosion": 0,                             "weirdness": 0,                             "depth": 0,                             "offset": 0                         }                     },                     {                         "biome": "newdatapack:blue",                         "parameters": {                             "temperature": [                                 0.5,                                 2                             ],                             "humidity": 0,                             "continentalness": 0,                             "erosion": 0,                             "weirdness": 0,                             "depth": 0,                             "offset": 0                         }                     }                 ]             },             "settings": ""         } }