When “type2” item gets tapped (highlighted), its layout is changed as shown on the screenshot (the second item with “None”):

After the item is “released”, the proper layout is restored. In other words, this happens only when the item is being highlighted.

This occurs only on Z1 (real device). In emulator everything is fine. Also, this does not happen with other items (of “full” and “default” item types).

This is how the Genlist and its items are created:

static char* gl_text_get_cb(void* data, Evas_Object* obj, const char* part) {
    if ((int)data == STL_FORM_PARENT) {
		if (!strcmp(part, "elm.text")) {
			return strdup("None");
		} else if (!strcmp(part, "elm.text.sub")) {
			return strdup("Parent");
		}
	} else if ((int)data == STL_FORM_COLOR) {
		if (!strcmp(part, "elm.text")) {
			return strdup("Color");
		}
	}
	return NULL;
}

static Evas_Object* gl_content_get_cb(void* data, Evas_Object* obj, const char* part) {
	if ((int)data == STL_FORM_NAME) {
		if (!strcmp(part, "elm.swallow.content")) {
			return create_editfield(obj);
		}
	} else if ((int)data == STL_FORM_PARENT) {
		if (!strcmp(part, "elm.swallow.icon.0")) {
			Evas_Object* bg = elm_bg_add(obj);
			elm_bg_color_set(bg, 66, 162, 206);
			evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
			evas_object_size_hint_min_set(bg, ELM_SCALE_SIZE(15), ELM_SCALE_SIZE(15));
			evas_object_size_hint_aspect_set(bg, EVAS_ASPECT_CONTROL_BOTH, 1, 1);
			return bg;
		}
	} else if ((int)data == STL_FORM_COLOR) {
		if (!strcmp(part, "elm.swallow.end")) {
			Evas_Object* bg = elm_bg_add(obj);
			elm_bg_color_set(bg, 66, 162, 206);
			evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
			evas_object_size_hint_min_set(bg, ELM_SCALE_SIZE(24), ELM_SCALE_SIZE(24));
			evas_object_size_hint_aspect_set(bg, EVAS_ASPECT_CONTROL_BOTH, 1, 1);
			return bg;
		}
	}
	return NULL;
}

static void gl_select_cb(void* data, Evas_Object* obj, void* event_info) {
	Elm_Object_Item* item = event_info;
	elm_genlist_item_selected_set(item, EINA_FALSE);
}

...

        Evas_Object* genlist = elm_genlist_add(nf);
        elm_genlist_mode_set(genlist, ELM_LIST_COMPRESS);
	evas_object_size_hint_weight_set(genlist, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
	evas_object_size_hint_align_set(genlist, EVAS_HINT_FILL, EVAS_HINT_FILL);
	elm_genlist_select_mode_set(genlist, ELM_OBJECT_SELECT_MODE_ALWAYS);

	Elm_Genlist_Item_Class* name_class = elm_genlist_item_class_new();
	name_class->item_style = "full";
	name_class->func.content_get = gl_content_get_cb;
	elm_genlist_item_append(genlist, name_class, (void*)STL_FORM_NAME, NULL, ELM_GENLIST_ITEM_NONE, gl_select_cb, NULL);

	Elm_Genlist_Item_Class* parent_class = elm_genlist_item_class_new();
	parent_class->item_style = "type2";
	parent_class->func.text_get = gl_text_get_cb;
	parent_class->func.content_get = gl_content_get_cb;
	elm_genlist_item_append(genlist, parent_class, (void*)STL_FORM_PARENT, NULL, ELM_GENLIST_ITEM_NONE, gl_select_cb, NULL);

	Elm_Genlist_Item_Class* color_class = elm_genlist_item_class_new();
	color_class->item_style = "default";
	color_class->func.text_get = gl_text_get_cb;
	color_class->func.content_get = gl_content_get_cb;
	elm_genlist_item_append(genlist, color_class, (void*)STL_FORM_COLOR, NULL, ELM_GENLIST_ITEM_NONE, gl_select_cb, NULL);

        evas_object_show(genlist);
        elm_genlist_item_class_free(name_class);
	elm_genlist_item_class_free(parent_class);
	elm_genlist_item_class_free(color_class);