Defined as follows:
\def\setupxtableparameters#1{% #1 is the node
\setupframeparameters{#1}{\setupxtable}%
\setupToAttribute{#1}{\setupxtable}{foregroundstyle}{style}{style}{\tf}%
\setupToAttribute{#1}{\setupxtable}{offset}{cellpadding}{}{0pt}%
\setupToAttribute{#1}{\setupxtable}{columndistance}{cellspacing}{}{0pt}%
\setupToAttribute{#1}{\setupxtable}{spaceinbetween}{rowspacing}{}{0pt}%
\setupToAttribute{#1}{\setupxtable}{option}{option}{}{}%
}
\def\setupframeparameters#1#2{%
% color
% Always set background to color if backgroundcolor is set.
\doifnot{\xmlatt{#1}{bgcolor}}{\empty}{#2[background=color]}%
% But it can be overridden.
\doifnot{\xmlatt{#1}{background}}{\empty}{#2[background=\xmlatt{#1}{background}]}%
\setupToAttribute{#1}{#2}{foregroundcolor}{color}{}{darkblue}%
\setupToAttribute{#1}{#2}{backgroundcolor}{bgcolor}{}{green}%
% frame
\doifnot{\xmlatt{#1}{frame}}{\empty}%
{#2[frame=off]\setframeparts{\xmlatt{#1}{frame}}{#2}}%
\setupToAttribute{#1}{#2}{framecolor}{framecolor}{}{black}%
\setupToAttribute{#1}{#2}{corner}{corner}{}{rectangular}%
\setupToAttribute{#1}{#2}{radius}{radius}{}{0.5ex}%
\setupToAttribute{#1}{#2}{backgroundcorner}{bgcorner}{}{rectangular}%
\setupToAttribute{#1}{#2}{backgroundradius}{bgradius}{}{0.5ex}%
% dimensions
\setupToAttribute{#1}{#2}{rulethickness}{rulethickness}{}{3pt}%
\doifnot{\xmlatt{#1}{height}}{\empty}%
{#2[height=\NumberCollect{"\xmlattdef{#1}{height}{fit}","\the\makeupheight"}]}%
\doifnot{\xmlatt{#1}{width}}{\empty}%
{#2[width=\NumberCollect{"\xmlattdef{#1}{width}{fit}","\the\textwidth"}]}%
% alignment
\setupToAttribute{#1}{#2}{strut}{strut}{}{on}%
\setupToAttribute{#1}{#2}{align}{align}{html}{normal}%
\setupToAttribute{#1}{#2}{align}{valign}{html}{lohi}%
}
% Setup parameter to attribute.
% #1 = node, #2 = setup, #3 = param, #4 = attrib, #5 = category, #6 = default.
\def\setupToAttribute#1#2#3#4#5#6{%
% Only executed if attribute is present.
\doifexistattribute{#1}{#4}%
% Attribute is present but category can be empty.
{\doifelse{#5}{\empty}%
{\doifelse{\xmlatt{#1}{#4}}{\empty}%
{#2[#3=#6]}% attribute present but empty then take default
{#2[#3=\xmlatt{#1}{#4}]}% attribute has content
}%
{#2[#3=\xlat{#1}{#5}{#4}{#6}]}% translate from category
}%
}