make font/spacing configuration option

render.py

@@ -953,16 +953,24 @@ YCbCr Matrix: None
 Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
 '''
     ass = header
-    offset = 10
+    offset = options.get("sub_margin", 10)
+    spacing = options.get("sub_spacing", 20)
     height = 42
     styles = []
     for lang in reversed(langs):
+        if isinstance(options.get("font"), list) and lang in options["font"]:
+            font = options["font"][lang]
+        else:
             font = 'SimHei' if lang in ('zh', 'jp') else 'Menlo'
+        if isinstance(options.get("font_size"), list) and lang in options["font_size"]:
+            size = options["font_size"][lang]
+        else:
             size = 46 if font == 'SimHei' else 42
+
         styles.append(
             f'Style: {lang},{font},{size},&Hffffff,&Hffffff,&H0,&H0,0,0,0,0,100,100,0,0,1,1,0,2,10,10,{offset},1'
         )
-        offset += size + 20
+        offset += size + spacing
     ass += '\n'.join(reversed(styles)) + '\n'
     events = [
         'Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text'