/* CECPQ1 (combined elliptic curve + post-quantum) suites. */

case 0x16B7: return "CECPQ1_RSA_WITH_CHACHA20_POLY1305_SHA256";
case 0x16B8: return "CECPQ1_ECDSA_WITH_CHACHA20_POLY1305_SHA256";
case 0x16B9: return "CECPQ1_RSA_WITH_AES_256_GCM_SHA384";
case 0x16BA: return "CECPQ1_ECDSA_WITH_AES_256_GCM_SHA384";

this way they don't show as

Ciphers:
[16B9] Unrecognized cipher - See http://www.iana.org/assignments/tls-parameters/
[16BA] Unrecognized cipher - See http://www.iana.org/assignments/tls-parameters/
[16B7] Unrecognized cipher - See http://www.iana.org/assignments/tls-parameters/
[16B8] Unrecognized cipher - See http://www.iana.org/assignments/tls-parameters/

when examining a CONNECT tunnel coming from Chrome Canary.