I want to know what software is offered in Ubuntu Mate's Boutique without downloading Ubuntu Mate 18.04.
How can I do so?
The reason is to settle a doubt about the availability of the gcolor2 package.
As the image below shows, it is absent from the regular Bionic repositories:
Image sourced from here.
Furthermore Debian removed gcolor2 according to RM: gcolor2 -- ROM; RoM, RoQA, dead-upstream, unmaintained, better alternatives available dated Fri, 21 Jul 2017 05:12:02 UTC well before Bionic was released (26 April 2018).
Could it perhaps somehow be offered via Ubuntu Mate's Software Boutique? The Software Boutique is described here as
An easy-to-use software distribution program for Ubuntu MATE. The team curates a selection of tried & tested applications that integrate well with the Ubuntu MATE desktop.
One can get an idea of the software offered by Ubuntu Mate's Software Boutique by downloading the contents of this link as sb.html and then running
grep -n name sb.html
The list has 5782 entries currently. gcolor2 isn't one of them.