Fixed very tall window.

Labels with autowrap inside a Container must have a minimum size.
See godotengine/godot#83546

CHANGELOG.md

@@ -22,6 +22,7 @@ For a more detailed list of past and incoming changes, see the commit history.
 - Fixed LOD chunks sometimes overlapping when the heightmap is modified (issue #411)
 - Fixed detail layers were rendering repeating instances outside the terrain when `map_scale` is not 1.0
 - Fixed detail layers were not rendering correctly when terrain is in centered mode
+- Fixed texture import dialog was opening a very tall window (issue #423)
 
 
 1.7.2

addons/zylann.hterrain/tools/texture_editor/set_editor/texture_set_import_editor.tscn

@@ -97,6 +97,7 @@ size_flags_vertical = 3
 
 [node name="Label3" type="Label" parent="Import/HS/VB2"]
 modulate = Color(0.564706, 0.564706, 0.564706, 1)
+custom_minimum_size = Vector2(400, 80)
 layout_mode = 2
 text = "These images should remain accessible for import to work.
 Tip: you can place them in a folder with a `.gdignore` file, so they won't take space in your exported game."