Color value from GETPIX_P returns unexpected result

[Carlos295pz]

A string variable can contain up to 65,535 chars, and stored data can be from 0 to 65,535 (2 bytes).

mystring (1):= 0;
mystring (65535):= 65535;

If larger values are assigned, the data is cut:
0 = 0
1 = 1
...
65535 = 65535
65536 = 0 (don't use)
65536 + 1 = 1 (don't use)
65536 + 2 = 2 (don't use)
...
65536 * 3 + 1 = 1 (don't use) .....