glTF exporter: for separated glTF, use tab as indent

io_scene_gltf2/__init__.py

@@ -4,7 +4,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (3, 5, 19),
+    "version": (3, 5, 20),
     'blender': (3, 4, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/io/exp/gltf2_io_export.py

@@ -29,9 +29,10 @@ def save_gltf(gltf, export_settings, encoder, glb_buffer):
     gltf_format = GlTF_format(None, (',', ':'))
 
     if export_settings['gltf_format'] != 'GLB':
-        gltf_format.indent = 4
+        gltf_format.indent = "\t"
         # The comma is typically followed by a newline, so no trailing whitespace is needed on it.
-        gltf_format.separators = (',', ' : ')
+        # No space before and after ':' to save space
+        gltf_format.separators = (',', ':')
 
     sort_order = [
         "asset",