In this chapter, I will give a brief overview of additional visual elements based on the TControl object. Some of them were made using legacy techniques, by embedding them in the TObj object, but this does not mean that they cannot be used, they just turn out to be somewhat limited in this case.
It should also not be forgotten that the authors made some of their "components" at a time, in connection with their current needs, and since then they, most likely, have not been updated for a long time. It is possible that when you try to compile them, some small problems may arise that you will have to resolve, most likely on your own. Since all the source code is provided, I think this is not a big problem, especially since most of the extensions presented here are small in size.
As for the frequency of using the components below, I personally do not use all of them. Sometimes there is an urgent need for a component, and there is simply no time to make my own, and then I use something, for example, a list for choosing a font (despite using outdated technology, it is quite functional). The writing of this chapter, among other things, is also an attempt to revise the accumulated good, and add to the list of links on your website.