A document names its fonts by PostScript name, which the importer split at the
first hyphen into family and style. A family with hyphens in its name was never
found: "Rounded-X-Mplus-1c-black" became family "rounded", style
"x-mplus-1c-black", and the text fell back to another font. Common Japanese
families have hyphens in their names.
The system font scan now also indexes each installed face's PostScript name
(read from the same name table it already reads). The importer asks for the face
with that exact name first (`FontDb::by_postscript_name`) and splits the name only
when no installed face has it.
Test: installed faces are found by PostScript name, in any case.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Luminosity soft masks become opacity masks (alpha masks as a white copy of
their art; backdrop colour gives Clip, an inverting transfer function Invert;
the PDF export's backdrop and Difference covers read back as the options; a
constant alpha mask is opacity). Transparency groups keep their /I and /K
flags (read by walking the content as the interpreter does). Tiling patterns
become pattern swatches (one per colour for uncoloured ones). Text becomes
point type, one object per line with a run per font and paint, fonts named
from the file (document.open textAs: text | outlines). Patch and triangle
mesh shadings become gradient meshes; gradients drawn through their grey
opacity mask get stop opacity back; shadings that don't extend clip the art.
A rectangular clip around all its art (a form's box) is dropped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
