Make the collection dialog progress bar more readable.

Signed-off-by: Adam Treat <treat.adam@gmail.com>

gpt4all-chat/qml/CollectionsDialog.qml

@@ -121,7 +121,7 @@ MyDialog {
                 }
                 Label {
                     id: speedLabel
-                    color: theme.textColor
+                    color: theme.progressText
                     visible: model.indexing || model.currentEmbeddingsToIndex !== model.totalEmbeddingsToIndex
                     anchors.verticalCenter: itemProgressBar.verticalCenter
                     anchors.left: itemProgressBar.left

gpt4all-chat/qml/Theme.qml

@@ -222,6 +222,17 @@ QtObject {
         }
     }
 
+    property color progressText: {
+        switch (MySettings.chatTheme) {
+            case "LegacyDark":
+                return "#ffffff";
+            case "Dark":
+                return "#000000";
+            default:
+                return "#000000";
+        }
+    }
+
     property color checkboxBorder: {
         switch (MySettings.chatTheme) {
             case "LegacyDark":