jf-roku/components/config/SetServerScreen.xml

<?xml version="1.0" encoding="utf-8"?>
<component name="SetServerScreen" extends="JFGroup">
  <interface>
    <field id="serverUrl" type="string" alias="serverUrlTextbox.text" />
    <field id="serverWidth" alias="serverUrlOutline.width,serverUrlTextbox.width,serverUrlContainer.width" value="1570" />
    <field id="serverHeight" alias="serverUrlOutline.height,serverUrlTextbox.height,serverUrlContainer.height" value="60" />
  </interface>

  <children>
    <Group translation="[150,0]">
      <label text="Connect to Server" id="prompt" font="font:LargeBoldSystemFont" translation="[0, 150]" />

      <label text="Pick a Jellyfin server from the local network" translation="[0, 200]" />
      <!--background for server picker-->
      <Rectangle color="0x00000020" width="1690" height="400" translation="[0, 250]">
        <Spinner id="spinner" translation="[717, 136]" />
        <MarkupList id="serverPicker" translation="[50, 20]" itemComponentName="JFServer" itemSpacing="[0, 10]" itemSize="[1590, 100]" numRows="3" vertFocusAnimationStyle="fixedFocus" />
      </Rectangle>

      <label text="...or enter server URL manually" translation="[0, 690]" />

      <Group width="1690" height="140" translation="[0, 730]">
        <LayoutGroup layoutDirection="horiz" vertAlignment="center" translation="[10, 70]">
          <Label text="URL: " font="font:MediumSystemFont" translation="[0, 25]" />
          <Rectangle id="serverUrlContainer" color="0x00000000">
            <TextEditBox id="serverUrlTextbox" hintText="e.g. 192.168.1.100:8096 or https://example.com/jellyfin"></TextEditBox>
            <Poster id="serverUrlOutline" visible="false" uri="pkg:/images/hd_focus.9.png" />
          </Rectangle>
        </LayoutGroup>
      </Group>
      <label text="" id="alert" font="font:MediumSystemFont" translation="[0, 555]" />
    </Group>
    <LayoutGroup layoutDirection="vert" horizAlignment="center" vertAlignment="top" translation="[960, 930]">
      <JFButton id="submit" minChars="30" text="Submit" translation="[120, 930]"></JFButton>
      <!--add a known width invisibile element to allow the button to be centered-->
      <Rectangle width="1920" height="12" color="#00000000" />
    </LayoutGroup>
  </children>

  <script type="text/brightscript" uri="SetServerScreen.brs" />

</component>