Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\\UseRGB{ <-- HERE (\d+)}\\\s*\d+\s*R/ at /usr/bin/thumbpdf line 1456. thumbpdf 2014/07/15 v3.16

Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\\UseRGB{ <-- HERE (\d+)}\\\s*\d+\s*R/ at /usr/bin/thumbpdf line 1456. THUMBPDF 3.16, 2014/07/15 - Copyright (c) 1999-2014 by Heiko Oberdiek. Syntax: thumbpdf [options] <jobname[.pdf|.ps]> Function: Support of thumbnails for pdfTeX or dvips/ps2pdf (pdfmark). Thumbnails are generated by Ghostscript and the result is written to data files for package `thumbpdf.sty': `<jobname>.tpt' (pdfTeX), `<jobname>.tpm' (pdfmark) Options: (defaults:) --help print usage --version print version number --(no)quiet suppress messages (false) --(no)verbose verbose printing (false) --(no)debug debug informations (false) --(no)makepng make thumbnails `thb*.png' (true) --(no)makepdf make `thumbpdf.pdf' with thumbnails as images (true) --(no)makedata make data file(s) for package `thumbpdf.sty' (true) --(no)clean clear temp files (true) --(no)useps `makepng' uses `.ps' instead of `.pdf' file (false) --(no)level2 `<jobname>.tpm' with ps level 2 features (false) --(no)greek text in greek style (experimental) (false) --gscmd <name> call of ghostscript (gs) --antialias <num1>[num2] anti-aliasing, 0 = disable, 4 = max (4) --device|png [png]<dev> Ghostscript device for thumbnails, dev = mono, gray, 16, 256, 16m (png16m) --resolution <res> thumbnail resolution for makepng (9) --compress <n> thumbnail compress level, n = 0..10 (10) --modes <mode>[,mode] mode=pdftex|pdfmark|dvips|ps2pdf| vtexpdfmark|all (pdftex) --password <password> for an encrypted pdf file ()