From 983586bc0cb22c32c57d2c2e184817d709f23e59 Mon Sep 17 00:00:00 2001
From: Alex Jordan <alex.jordan@pcc.edu>
Date: Sat, 12 Aug 2023 23:16:56 -0700
Subject: [PATCH] use \hiderowcolors to address possible colortbl bug

---
 assets/tex/pg.sty       | 3 ++-
 macros/ui/niceTables.pl | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/assets/tex/pg.sty b/assets/tex/pg.sty
index 8fcdf988df..80ae201058 100644
--- a/assets/tex/pg.sty
+++ b/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
 
diff --git a/macros/ui/niceTables.pl b/macros/ui/niceTables.pl
index 23bbcb570d..928eb22e10 100644
--- a/macros/ui/niceTables.pl
+++ b/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 = '';