Thanks! That works
plt_layout = PlotlyJS.Layout(;
template = PlotlyJS.templates.simple_white,
height = 400,
width = trunc(Int, sqrt(2) * 400),
title_font_size = 28,
font_size = 20,
legend_font_size = 20,
xaxis = PlotlyJS.attr(;
linewidth = 2.0,
linecolor = "rgb(36,36,36)",
zeroline = false,
showline = true,
),
yaxis = PlotlyJS.attr(;
linewidth = 2.0,
linecolor = "rgb(36,36,36)",
zeroline = false,
showline = true,
),
)
MyTemplateHalfTextWidth = PlotlyJS.Template(layout = plt_layout)