Map textFontStyle=1 (faux bold) to PSD

- TypeLayer mode: StyleSheetData.FauxBold=true for bold text layers
- Rasterized mode: render with stroke width for faux bold
Verified: 50/54 text layers get FauxBold, stroke rendering thickens glyphs.

ppl2psd.py

@@ -38,7 +38,8 @@ except ImportError:  # pragma: no cover
 # Optional TypeLayer (editable text) support
 try:
     from psd_tools.psd.tagged_blocks import TypeToolObjectSetting
-    from psd_tools.psd.engine_data import (String, Float, Integer, Dict, List)
+    from psd_tools.psd.engine_data import (String, Float, Integer, Bool,
+                                           Dict, List)
     _TYSHA = True
 except ImportError:  # pragma: no cover
     _TYSHA = False
@@ -331,13 +332,17 @@ def render_text(ly: dict, cw: int, ch: int) -> Optional[Tuple[Image.Image, Tuple
     th = len(lines) * line_h + size * 0.25  # slack so the last line never clips
 
     # --- render at natural size, centered on the layer box ---
-    raw_w, raw_h = max(1, int(round(tw))), max(1, int(round(th)))
+    # faux bold (textFontStyle=1) via stroke width
+    stroke_w = max(1, int(size / 40)) if ly.get("textFontStyle") == "1" else 0
+    pad = stroke_w  # room for the stroke so glyphs don't clip
+    raw_w, raw_h = max(1, int(round(tw)) + 2 * pad), max(1, int(round(th)) + 2 * pad)
     img = Image.new("RGBA", (raw_w, raw_h), (0, 0, 0, 0))
     draw = ImageDraw.Draw(img)
     for i, ln in enumerate(lines):
-        x = 0
+        x = pad
         for ch_ in ln:
-            draw.text((x, int(round(i * line_h))), ch_, font=font, fill=fill)
+            draw.text((x, pad + int(round(i * line_h))), ch_, font=font,
+                      fill=fill, stroke_width=stroke_w, stroke_fill=fill)
             x += char_advance(ch_) + ls
 
     # center on the boundingRect. Narrow-profile fonts (Source Han
@@ -512,6 +517,10 @@ def build_type_layer_tysh(ly: dict, font_ps: str) -> bytes:
                          Float(b / 255.0), Float(a / 255.0)])
     ssd["FillColor"] = fc
 
+    # bold / italic (textFontStyle: 1 = faux bold)
+    if ly.get("textFontStyle") == "1":
+        ssd["FauxBold"] = Bool(True)
+
     res["FontSet"][0]["Name"] = String(font_ps)
 
     l, t, rr, bb = bounding_rect(ly)