Add missing hidpi assets

src/render-gtk3-assets-hidpi.py

@@ -1,7 +1,5 @@
 #!/usr/bin/python3
 
-# Thanks to the GNOME theme nerds for the original source of this script
-
 import os
 import sys
 import xml.sax
@@ -32,9 +30,9 @@ def wait_for_prompt(process, command=None):
         return
 
     output += process.stdout.read(1)
-    while output != b'\n>':
-        output += process.stdout.read(1)
-        output = output[1:]
+    # while output != b'\n>':
+    #     output += process.stdout.read(1)
+    #     output = output[1:]
 
 
 def start_inkscape():
@@ -51,7 +49,7 @@ def inkscape_render_rect(icon_file, rect, output_file):
     if inkscape_process is None:
         inkscape_process = start_inkscape()
     wait_for_prompt(inkscape_process,
-                    '--export-dpi=180 %s -i %s -e %s'
+                    'export-dpi:180; file-open:%s; export-id:%s; export-filename:%s; export-do'
                     % (icon_file, rect, output_file)
                     )
     optimize_png(output_file)