use \hiderowcolors to address possible colortbl bug

Author: Alex-Jordan

assets/tex/pg.sty

@@ -4,7 +4,8 @@
 % packages that are needed for some PG macro to function for tex output or that
 % support math mode tex macros that could reasonably appear in a PG problem
 \usepackage{amsmath, amsfonts, amssymb}                                           % math macros
-\usepackage{booktabs, tabularx, colortbl, caption, xcolor}                        % niceTables.pl
+\usepackage{booktabs, tabularx, colortbl, caption}                                % niceTables.pl
+\usepackage[table]{xcolor}                                                        % niceTables.pl
 \usepackage{multicol}                                                             % DragNDrop.pm
 \usepackage[version=4]{mhchem}                                                    % chemistry macros
 

macros/ui/niceTables.pl

@@ -758,6 +758,10 @@ sub Rows {
 					if $x->{bottom};
 			}
 
+			# if this row had a row color, disable that now or else with nested tables
+			# the row color will extend into subsequent rows (this seems like a colortbl bug)
+			$row = suffix($row, '\hiderowcolors', ' ') if $rowcolor;
+
 			push(@rows, $row);
 		} elsif ($main::displayMode eq 'PTX') {
 			my $ptxbottom = '';