Adding client-side flags for supporting TRUECOLOR and extending MTTS/TTYPE so that it can detect more client capabilities. We're not USING those capabilities at the moment, but no reason to not detect them.

evennia/server/portal/ssh.py

@@ -127,6 +127,10 @@ class SshProtocol(Manhole, _BASE_SESSION_CLASS):
         self.width = width
         self.height = height
 
+        # Set color defaults
+        for color in ("ANSI", "XTERM256", "TRUECOLOR"):
+            self.protocol_flags[color] = True
+
         # initialize the session
         client_address = self.getClientAddress()
         client_address = client_address.host if client_address else None

evennia/server/portal/ttype.py

@@ -19,6 +19,10 @@ SEND = bytes([1])  # b"\x01"
 
 # terminal capabilities and their codes
 MTTS = [
+    (2048, "SSL"),
+    (1024, "MSLP"),
+    (512, "MNES"),
+    (256, "TRUECOLOR"),
     (128, "PROXY"),
     (64, "SCREENREADER"),
     (32, "OSC_COLOR_PALETTE"),

evennia/server/portal/webclient.py

@@ -131,6 +131,9 @@ class WebSocketClient(WebSocketServerProtocol, _BASE_SESSION_CLASS):
         self.protocol_flags["CLIENTNAME"] = f"Evennia Webclient (websocket{browserstr})"
         self.protocol_flags["UTF-8"] = True
         self.protocol_flags["OOB"] = True
+        self.protocol_flags["TRUECOLOR"] = True
+        self.protocol_flags["XTERM256"] = True
+        self.protocol_flags["ANSI"] = True
 
         # watch for dead links
         self.transport.setTcpKeepAlive(1)