ModelProject/Library/PackageCache/com.unity.2d.animation@5.1.1/Editor/Assets/SkinningModule/VisibilityToolWindow.uxml

<?xml version="1.0" encoding="utf-8"?>
<UXML xmlns:ui="UnityEngine.UIElements" xmlns:eui="UnityEditor.UIElements" xmlns:aui="UnityEditor.U2D.Animation">
  <aui:VisibilityToolWindow name="VisibilityToolWindow" picking-mode="Ignore">
    <ui:PopupWindow name="PopupWindow" text="Visibility">
        <ui:VisualElement name="OpacitySliderGroup">
            <ui:VisualElement name="BoneOpacitySliderGroup" >
                <ui:Image name="BoneOpacitySliderIcon" tool-tip = "Adjust Bone opacity"/>
                <ui:Slider name ="BoneOpacitySlider" low-value ="0" high-value="1" direction="Horizontal" tool-tip = "Adjust Bone opacity"/>
            </ui:VisualElement>
            <ui:VisualElement name="MeshOpacitySliderGroup">
                <ui:Image name="MeshOpacitySliderIcon" tool-tip =" Adjust Weight opacity"/>
                <ui:Slider name ="MeshOpacitySlider" low-value ="0" high-value="1" direction="Horizontal" tool-tip =" Adjust Weight opacity"/>
            </ui:VisualElement>
        </ui:VisualElement>
      <ui:VisualElement name ="VisibilityToolSelection" />
      <ui:VisualElement name ="VisibilityToolContainer" />
    </ui:PopupWindow>
    <ui:VisualElement name="Resizer"/>
  </aui:VisibilityToolWindow>
</UXML>