forgot to push for a while, got drag-and-drop mostly working

card_preview.tscn

@@ -0,0 +1,63 @@
+[gd_scene load_steps=5 format=3 uid="uid://dh6xfgsoquxdc"]
+
+[ext_resource type="Script" path="res://card_preview.cs" id="1_o00ln"]
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_ndhi0"]
+bg_color = Color(1, 1, 1, 1)
+
+[sub_resource type="LabelSettings" id="LabelSettings_ui6ue"]
+outline_size = 2
+outline_color = Color(0, 0, 0, 1)
+
+[sub_resource type="LabelSettings" id="LabelSettings_gncft"]
+outline_size = 2
+outline_color = Color(0, 0, 0, 1)
+
+[node name="CardPreview" type="Control" groups=["CardGroup"]]
+custom_minimum_size = Vector2(200, 200)
+layout_mode = 3
+anchors_preset = 0
+offset_right = 200.0
+offset_bottom = 200.0
+script = ExtResource("1_o00ln")
+
+[node name="CardPreviewBackground" type="Panel" parent="."]
+unique_name_in_owner = true
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+theme_override_styles/panel = SubResource("StyleBoxFlat_ndhi0")
+
+[node name="CardPreviewImage" type="TextureRect" parent="CardPreviewBackground"]
+unique_name_in_owner = true
+layout_mode = 1
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+expand_mode = 1
+stretch_mode = 5
+
+[node name="CardPreviewNameLabel" type="Label" parent="."]
+unique_name_in_owner = true
+layout_mode = 0
+offset_right = 40.0
+offset_bottom = 23.0
+text = "Name"
+label_settings = SubResource("LabelSettings_ui6ue")
+
+[node name="CardPreviewIdLabel" type="Label" parent="."]
+unique_name_in_owner = true
+layout_mode = 1
+anchors_preset = 2
+anchor_top = 1.0
+anchor_bottom = 1.0
+offset_top = -23.0
+offset_right = 40.0
+grow_vertical = 0
+text = "ID"
+label_settings = SubResource("LabelSettings_gncft")