Add scrollbars to running scripts and available scripts tables

interface/resources/qml/controls-uit/Table.qml

@@ -44,10 +44,60 @@ TableView {
 
     backgroundVisible: true
 
+    horizontalScrollBarPolicy: Qt.ScrollBarAlwaysOff
+    verticalScrollBarPolicy: Qt.ScrollBarAsNeeded
+
     style: TableViewStyle {
         // Needed in order for rows to keep displaying rows after end of table entries.
-        backgroundColor: treeView.isLightColorScheme ? hifi.colors.tableRowLightEven : hifi.colors.tableRowDarkEven
+        backgroundColor: parent.isLightColorScheme ? hifi.colors.tableRowLightEven : hifi.colors.tableRowDarkEven
-        alternateBackgroundColor: treeView.isLightColorScheme ? hifi.colors.tableRowLightOdd : hifi.colors.tableRowDarkOdd
+        alternateBackgroundColor: parent.isLightColorScheme ? hifi.colors.tableRowLightOdd : hifi.colors.tableRowDarkOdd
+
+        handle: Item {
+            id: scrollbarHandle
+            implicitWidth: 8
+            Rectangle {
+                radius: 4
+                color: hifi.colors.tableScrollHandle
+                anchors {
+                    fill: parent
+                    leftMargin: 4  // Finesse size and position.
+                    rightMargin: -1
+                    topMargin: 2
+                    bottomMargin: 3
+                }
+            }
+        }
+
+        scrollBarBackground: Item {
+            implicitWidth: 10
+
+            Rectangle {
+                color: hifi.colors.baseGrayHighlight
+                anchors {
+                    fill: parent
+                    leftMargin: 1  // Finesse size and position.
+                    topMargin: -2
+                    bottomMargin: -2
+                }
+            }
+
+            Rectangle {
+                radius: 4
+                color: hifi.colors.tableScrollBackground
+                anchors {
+                    fill: parent
+                    leftMargin: 3  // Finesse position.
+                }
+            }
+        }
+
+        incrementControl: Item {
+            visible: false
+        }
+
+        decrementControl: Item {
+            visible: false
+        }
     }
 
     rowDelegate: Rectangle {

interface/resources/qml/controls-uit/Tree.qml

@@ -45,10 +45,60 @@ TreeView {
 
     backgroundVisible: true
 
+    horizontalScrollBarPolicy: Qt.ScrollBarAlwaysOff
+    verticalScrollBarPolicy: Qt.ScrollBarAsNeeded
+
     style: TreeViewStyle {
         // Needed in order for rows to keep displaying rows after end of table entries.
-        backgroundColor: treeView.isLightColorScheme ? hifi.colors.tableRowLightEven : hifi.colors.tableRowDarkEven
+        backgroundColor: parent.isLightColorScheme ? hifi.colors.tableRowLightEven : hifi.colors.tableRowDarkEven
-        alternateBackgroundColor: treeView.isLightColorScheme ? hifi.colors.tableRowLightOdd : hifi.colors.tableRowDarkOdd
+        alternateBackgroundColor: parent.isLightColorScheme ? hifi.colors.tableRowLightOdd : hifi.colors.tableRowDarkOdd
+
+        handle: Item {
+            id: scrollbarHandle
+            implicitWidth: 8
+            Rectangle {
+                radius: 4
+                color: hifi.colors.tableScrollHandle
+                anchors {
+                    fill: parent
+                    leftMargin: 4  // Finesse size and position.
+                    rightMargin: -1
+                    topMargin: 2
+                    bottomMargin: 3
+                }
+            }
+        }
+
+        scrollBarBackground: Item {
+            implicitWidth: 10
+
+            Rectangle {
+                color: hifi.colors.baseGrayHighlight
+                anchors {
+                    fill: parent
+                    leftMargin: 1  // Finesse size and position.
+                    topMargin: -2
+                    bottomMargin: -2
+                }
+            }
+
+            Rectangle {
+                radius: 4
+                color: hifi.colors.tableScrollBackground
+                anchors {
+                    fill: parent
+                    leftMargin: 3  // Finesse position.
+                }
+            }
+        }
+
+        incrementControl: Item {
+            visible: false
+        }
+
+        decrementControl: Item {
+            visible: false
+        }
     }
 
     rowDelegate: Rectangle {

interface/resources/qml/styles-uit/HifiConstants.qml

@@ -52,6 +52,8 @@ Item {
         readonly property color tableRowLightEven: "#1a575757"
         readonly property color tableRowDarkOdd: "#80393939"
         readonly property color tableRowDarkEven: "#a6181818"
+        readonly property color tableScrollHandle: "#707070"
+        readonly property color tableScrollBackground: "#323232"
     }
 
     Item {