Powerline symbol - transparent background

[Ctrl-Alb]

Hello,
I would like to ask how to make the background of the first powerline symbol transparent.
My terminal background is blurred and transparent, and I would like the powerline symbol background to match it.
Instead, the powerline symbol background shows a non-transparent version of the terminal background color.
Is there a way to make it transparent so that it matches the terminal background?
I am using both Ghostty and Windows Terminal.
Here's a screenshot and my config file:

config file

{
  "$schema": "https://raw.githubusercontent.com/JanDeDobbeleer/oh-my-posh/main/themes/schema.json",
  "palette": {
    "red": "red",
    "green": "green",
    "yellow": "yellow",
    "lightRed": "lightRed",
    "lightGreen": "lightGreen",
    "lightYellow": "lightYellow"
  },
  "palettes": {
    "template": "{{ .Env.OMP_THEME | default \"Clear Dark\" }}",
    "list": {
      "Clear Dark": {
        "black": "#35424C",
        "blue": "#6D96B4",
        "magenta": "#BD7BCD",
        "cyan": "#7CCBCD",
        "white": "#DEE5EB",
        "brightBlack": "#465C6D",
        "brightBlue": "#67B5ED",
        "brightCyan": "#84DDE0",
        "brightWhite": "#E5EFF5",
        "backgroundColor": "#35424C"
      },
      "Clear Light": {
        "black": "#2D3840",
        "blue": "#5685A8",
        "magenta": "#AD64BE",
        "cyan": "#69C6C9",
        "white": "#C1C8CC",
        "brightBlack": "#506573",
        "brightBlue": "#49A2E1",
        "brightCyan": "#77E1E5",
        "brightWhite": "#D8E1E7",
        "backgroundColor": "#C1C8CC"
      }
    }
  },
  "secondary_prompt": {
    "template": "<p:backgroundColor,transparent>\ue0b6</><,p:backgroundColor> >  </><p:backgroundColor,transparent>\ue0b0</> ",
    "foreground": "p:green",
    "background": "transparent"
  },
"transient_prompt": {
  "template": "<p:backgroundColor,transparent>\ue0b6</><,p:backgroundColor> {{ if eq .OS \"darwin\" }}\udb81\ude33 {{ else if eq .OS \"windows\" }}\udb80\udd4f {{ else if eq .OS \"debian\" }}\ue722 {{ end }} </><p:backgroundColor,transparent>\ue0b0</> ",
  "foreground": "p:green",
  "background": "transparent"
},
  "upgrade": {
    "source": "cdn",
    "interval": "168h",
    "auto": false,
    "notice": false
  },
  "blocks": [
    {
      "type": "prompt",
      "alignment": "left",
      "segments": [
        {
          "type": "os",
          "style": "diamond",
          "leading_diamond": "\ue0b6",
          "trailing_diamond": "\ue0b0",
          "foreground": "p:green",
          "background": "p:backgroundColor",
          "template": " {{.Icon}}  {{if .Root}} \udb81\ude32 {{end}}",
          "properties": {
            "macos": "\udb81\ude33",
            "windows": "\udb80\udd4f",
            "debian": "\ue722"
          }
        },
        {
          "type": "path",
          "style": "powerline",
          "powerline_symbol": "\ue0b0",
          "foreground": "p:magenta",
          "background": "p:backgroundColor",
          "template": " \uea83  {{ path .Path .Location }} ",
          "properties": {
            "style": "folder"
          }
        }
      ]
    }
  ],
  "version": 3,
  "final_space": true
}