diff --git a/src/MainUI.gd b/src/MainUI.gd
index c0dfa79..ee8cd7e 100644
--- a/src/MainUI.gd
+++ b/src/MainUI.gd
@@ -24,6 +24,14 @@ enum Status {OKAY, ERROR, UNKNOWN = -1}
 
 #
 
+func _ready() -> void:
+	var exts = []
+	for e in main.BATCH_MODE_SUPPORTED_EXTS:
+		exts.append("*" + e)
+	open_image_dialog.add_filter(", ".join(exts), "Image")
+	open_shader_dialog.add_filter("*.gdshader", "Shader")
+	save_image_dialog.add_filter("*.png", "Image")
+
 func _input(event):
 	if event.is_action_pressed("apply_shader"):
 		_on_apply_shader_button_pressed()
@@ -33,8 +41,12 @@ func _input(event):
 #
 
 func set_buttons_disabled(disabled: bool):
-	for b in [open_shader_button, open_image_button, save_image_button, fit_image_button, apply_shader_button, status_indicator]:
-		b.disabled = disabled
+	if disabled:
+		for b in [open_shader_button, open_image_button, save_image_button, fit_image_button, apply_shader_button, status_indicator]:
+			b.disabled = disabled
+	else:
+		for b in [open_shader_button, open_image_button, fit_image_button, apply_shader_button, status_indicator]:
+			b.disabled = disabled
 
 #
 
diff --git a/src/scenes/main.tscn b/src/scenes/main.tscn
index df52a66..df919bd 100644
--- a/src/scenes/main.tscn
+++ b/src/scenes/main.tscn
@@ -83,7 +83,6 @@ ok_button_text = "Open"
 mode_overrides_title = false
 file_mode = 0
 access = 2
-filters = PackedStringArray("*.gdshader")
 use_native_dialog = true
 
 [node name="OpenImageDialog" type="FileDialog" parent="CanvasLayer/MainUI"]
@@ -95,7 +94,6 @@ ok_button_text = "Open"
 mode_overrides_title = false
 file_mode = 0
 access = 2
-filters = PackedStringArray("*.png", "*.jpg", "*.jpeg")
 use_native_dialog = true
 
 [node name="SaveImageDialog" type="FileDialog" parent="CanvasLayer/MainUI"]
@@ -105,7 +103,6 @@ title = "Export Image"
 size = Vector2i(661, 175)
 mode_overrides_title = false
 access = 2
-filters = PackedStringArray("*.png")
 use_native_dialog = true
 
 [node name="ErrorMessageDialog" type="AcceptDialog" parent="CanvasLayer/MainUI"]