Bottom edge profile at x=700:
y=1040: R=231, G=230, B=225
y=1042: R=231, G=230, B=225
y=1044: R=230, G=229, B=224
y=1046: R=229, G=228, B=223
y=1048: R=230, G=229, B=224
y=1050: R=230, G=229, B=224
y=1052: R=229, G=228, B=223
y=1054: R=228, G=227, B=222
y=1056: R=229, G=229, B=221
y=1058: R=231, G=230, B=225
y=1060: R=219, G=218, B=214
y=1062: R=208, G=205, B=200
y=1064: R=124, G=108, B=75
y=1066: R=123, G=106, B=76
y=1068: R=29, G=22, B=12
y=1070: R=20, G=19, B=17
y=1072: R=17, G=17, B=17
y=1074: R=14, G=14, B=14
y=1076: R=10, G=10, B=10
y=1078: R=7, G=7, B=7