ok fixed it

powerlevel_10k_rainbow_custom.omp.json

@@ -195,10 +195,13 @@
           "background": "#0077c2",
           "properties": {
             "mapped_shell_names": {
-              "pwsh": "\udb82\ude0a pwsh",
-              "bash": "\uebca bash",
-              "xonsh": "\uea85 xonsh",
-              "fish": "\uee41 fish"
+              "pwsh": "󰨊 pwsh",
+              "powershell": "󰨊 PowerShell",
+              "bash": " bash",
+              "zsh": " zsh",
+              "xonsh": "🐚 xonsh",
+              "fish": "󰈺 fish",
+              "cmd": " cmd"
             }
           }
         },
@@ -210,13 +213,22 @@
           "template": " {{ if gt .Code 0 }}{{ reason .Code }}{{ else }}\uf42e{{ end }} ",
           "foreground": "#000000",
           "background": "#d3d7cf",
-          "trailing_diamond": "\ue0b0\u2500\u256e",
+          "trailing_diamond": "\ue0b0",
           "type": "status",
           "style": "diamond",
           "background_templates": [
             "{{ if gt .Code 0 }}#cc2222{{ end }}"
           ],
           "invert_powerline": true
+        },
+        {
+          "properties": {
+            "cache_duration": "none"
+          },
+          "template": "{{ if matchP \"(powershell|pwsh|fish|cmd|nu|zsh)\" .Shell }}\u2500\u256e{{ end }}",
+          "foreground": "#d3d7cf",
+          "type": "text",
+          "style": "plain"
         }
       ]
     },