7.59.3 Can you answer these questions?

7.59.3.1 Problem using arrayrulecolor and compiling with make4ht
7.59.3.2 How to insert text in Beamer Title Page just below title
7.59.3.3 Base file for certain formatting
7.59.3.1 Problem using arrayrulecolor and compiling with make4ht

https://tex.stackexchange.com/landing/r/digest?cta=question&id=615729

The following example crashes when compiling with make4ht The problem relies on the usage of \arrayrulecolor. 
\documentclass{article} 
\usepackage{booktabs,colortbl} 
\begin{document} 
\begin{table} 
\... 
[tex4ht] [colortbl] [make4ht]
 
asked by LEo https://tex.stackexchange.com/landing/r/digest?cta=user&id=37214 1 vote
7.59.3.2 How to insert text in Beamer Title Page just below title

https://tex.stackexchange.com/landing/r/digest?cta=question&id=615905

How to insert text in Beamer Title Page just below title 
[beamer] [titles]
 
asked by hugh_maths https://tex.stackexchange.com/landing/r/digest?cta=user&id=240842 1 vote
7.59.3.3 Base file for certain formatting

https://tex.stackexchange.com/landing/r/digest?cta=question&id=615650

I'm interested in making a latex text and using the following template as shown below: 
This text is in Portuguese, the "SumA~\[DownExclamation]rio" translation is the Summary, and the "IntroduA~\[Section]A~\[Sterling]o" ... 
[packages] [amsart] [preamble]
 
asked by Croos https://tex.stackexchange.com/landing/r/digest?cta=user&id=50306 1 vote