These custom charsets are sorted in order by the most popular characters. Instead of aeiou for vowels, a higher frequency was determined by the order eaoiu. Take a look at this source about letter frequency.
eaoiu
e3a4o0i1u
eEaAoOiIuU
eE3aA4oO0iI1uU
EAOIU
E3A4O0I1U
tnshrdlcmfwygpbvkqjxz
tnshrdlcmfwygpbvkqjxz0123456789
tnshrdlcmfwygpbvkqjxzTNSHRDLCMFWYGPBVKQJXZ
tnshrdlcmfwygpbvkqjxzTNSHRDLCMFWYGPBVKQJXZ0123456789
rtnslcdpmhgbfywkvxzjq
rtnslcdpmhgbfywk
TNSHRDLCMFWYGPBVKQJXZ
TNSHRDLCMFWYGPBVKQJXZ0123456789
eE3aA4rRiI1oO0tTnNsS$lL1cCuUdDpPmMhHgGbB8fFyYwWkK
eariotnslcudpmhgbfywk
eariotnslcudpmhgbfywkvxzjqEARIOTNSLCUDPMHGBFYWKVXZJQ
eEaArRiIoOtTnNsSlLcCuUdDpPmMhHgGbBfFyYwWkK
eE3aA4rRiI1oO0tTnNsSlL
eE3aA4rRiI1oO0tTnNsSlLcC
eE3aA4rRiI1oO0tTnNsSlLcCuU
eE3aA4rRiI1oO0tTnNsSlLcCuUdD
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpP
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmM
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhH
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgG
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgGbB
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgGbBfF
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgGbBfFyY
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgGbBfFyYwW
eE3aA4rRiI1oO0tTnNsSlLcCuUdDpPmMhHgGbBfFyYwWkK
ae10i2onrls938t45m67cdyhubkgpjvfwzAxEILORNSM.TCD_BqHYK!U-PG*J@FVWZ/#$X,\+&=)?Q(';"<]%~:[^`>ae10i2onrls938t45m67cdyhubkgpjvfwzAxEILORNSMTCDBqHYKUPGJFVWZXQ
ae10i2onrls938t45m67cdyhubkgpjvfwzAxEILORNSMTCDBqHYK
EARIOTNSLCUDPMHGBFYWK