How can i add font on roku?

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1

I just used the following code . But not working. please help me. IF this is not the right method. Please suggest me the right method.

<Label>
       <Font role="font" uri="pkg:/fonts/NotoSansMalayalam-Regular.ttf" size="24" />
</Label>

But not working .

The name of the language is MALAYALAM. I have got this font from google noto

This is my main.brs

sub Main()
  showChannelSGScreen()
end sub

sub showChannelSGScreen()

  screen = CreateObject("roSGScreen")
  m.port = CreateObject("roMessagePort")
  screen.setMessagePort(m.port)
  scene = screen.CreateScene("VideoExampleScene")
  screen.show()
  

  while(true)

    msg = wait(0, m.port)
    msgType = type(msg)

    if msgType = "roSGScreenEvent"
      if msg.isScreenClosed() then return
    end if

  end while

end sub

And xml

<?xml version="1.0" encoding="utf-8" ?> 

<component name = "VideoExampleScene" extends = "Scene" >

  <script type="text/brightscript" >

    <![CDATA[

    sub init()
      m.top.backgroundURI = "pkg:/images/rsgetbg.jpg"

      m.videolist = m.top.findNode("videoLabelList")
      m.videoinfo = m.top.findNode("infoLabel")
      m.videoposter = m.top.findNode("videoPoster")
      m.video = m.top.findNode("exampleVideo")

      m.video.observeField("state","controlvideoplay")

      m.readVideoContentTask = createObject("RoSGNode","VideoContentReader")
      m.readVideoContentTask.observeField("videocontent","showvideolist")
      m.readVideoContentTask.videocontenturi = "pkg:/server/videocontent.xml"
      m.readVideoContentTask.control = "RUN" 

      m.videolist.observeField("itemFocused","setvideo")
      m.videolist.observeField("itemSelected","playvideo")
    end sub

    sub showvideolist()
      m.videolist.content = m.readVideoContentTask.videocontent
      m.videolist.setFocus(true)
    end sub

    sub setvideo()
      videocontent = m.videolist.content.getChild(m.videolist.itemFocused)
      m.videoposter.uri = videocontent.hdposterurl
      m.videoinfo.text = videocontent.description
      m.video.content = videocontent
    end sub

    sub playvideo()
      m.video.control = "play"
      m.video.visible = true
      m.video.setFocus(true)
    end sub

    sub controlvideoplay()
      if (m.video.state = "finished") 
        m.video.control = "stop"
        m.videolist.setFocus(true)
        m.video.visible = false
      end if
    end sub

    function onKeyEvent(key as String,press as Boolean) as Boolean
      if press then
        if key = "back"
          if (m.video.state = "playing")
            m.video.control = "stop"
            m.videolist.setFocus(true)
            m.video.visible = false

            return true
          end if
        end if
      end if

      return false
    end function

    ]]>

  </script>

  <children>

    <LabelList 
      id = "videoLabelList"
      itemSize = "[ 350, 60 ]"
      translation = "[ 140, 100 ]" />

    <Poster 
      id = "tvPoster"
      translation = "[ 560, 100 ]"
      width = "647"
      height = "448"
      uri = "pkg:/images/flatscreencntnt.png" >

      <Poster 
        id = "videoPoster" 
        translation = "[ 53, 45 ]" 
        width = "540" 
        height = "304" />

      <Rectangle
        id = "infoRectangle"
        translation = "[ 0, 460 ]"
        width = "647"
        height = "76"
        color = "0x161616FF" >

        <Label
          id = "infoLabel"
          translation = "[ 20, 20 ]"
          width = "607"
          height = "36" 
          horizalign = "center"
          vertalign = "center"
          wrap = "true"
          font = "font:LargeBoldSystemFont" />

      </Rectangle>

    </Poster>

    <Video
      id = "exampleVideo"
      visible = "false" />

  </children>

</component>