 Hello, my name is Lasko Nemet, and I will... In in the previous presentation, there was a software migration project, migrating and Microsoft Office add-on, an add-on of a very old Microsoft Office version to LibreOffice, and I want to show you that it is a migration-resultated core developments in LibreOffice and which results. The first of all, the custom XML for the customer, migrating the custom XML. Originally, we have three standard RDF, but it's already part of the open document 1.2, and in fact, it's possible to add the arbitrary number of XML files in these RDF-formatted RDF files to the open document archive, and after that, the content of this metadata file used not only for metadata, for example, annotation in the text, but it's possible to insert the content of the metadata XML files to the text of the LibreOffice. So after that, one of the extensions was to create more visibility for these RDF annotations in the text, and it's possible to use a custom color defined in the RDF file later to show these annotated data fields with different colors, defined in the RDF file, and the other extension in LibreOffice that it's possible to check all the content, all the associated metadata using the style inspector. As you can see, for example, there is in the character direct formatting part of the style inspector contains a metadata reference branch, and after that, you can check the content, for example, here, to definition and XML ID and a longer one, this is the color of the metadata in this example. The other nice improvement was the better bookmark visibility thanks to the work of Michael Stahl from Allotropia who started to creating for interoperability because it was possible in Microsoft Office to show the bookmark boundaries, but, for example, the point bookmarks that could be seen out of range and singular point was only a single vertical line, so I extended the visibility by creating, like in Microsoft Office, I shape form of this mark, switch on the disabled, enabled by the field shading view feature of LibreOffice writer, but the trick was that it's originally the opening and closing brackets are characters from the open font, I don't know the name, of a very old font of OpenOffice.org and LibreOffice, and there was no eye shape in it, so I made the trick that using the closing and opening brackets, but starting with the closing brackets, it was possible to create something eye shape form, so I was very proud that you can notice the difference. Sometimes if you try to create some different zones, you can create some little slide, but I hope it's invisible the difference, that it's two characters on the screen instead of one, and the main reason, what is why it was important, one of the main reasons, the visibility, in normal zoom, it was not possible to check, to notice the point bookmark, because of the body text border in this visibility mode, but now it's better, and you can check the difference, sorry, this one, I'll try to make some better visibility, and this is the ending and starting boundary of two different bookmarks, so it's not the same than the point bookmark, and more, for example, now it's possible to create, add the color to the brackets, so if you're using RDF for a bookmark, it's possible, thanks to the open document standard, you can define a color of the bookmark in the RDF file of the document, and notation of the text, not only by book creators, but the science, it's a very common language technology or data processing, and the other interesting thing, that ambige bookmarks got a visualization, you can check the end of the test examples, you can see the double brackets, closing brackets with different colors, so that is an interesting improvement, by product of this development, that in the code there was to do some part of the code, and that part of the code was important for the previous development, and this was about accessibility, I thought that maybe it's not, it's better to, because I had to do, in fact, I tried to create some, for the screen reader software, defining the next thing, and now today, thank you very much to Michael Weckhorn, who verified that it works, so in the screen reader, when the field shading is enabled, the screen reader will read loudly the bookmark boundaries in this form, hash mark, bookmark one, or the custom name of the bookmark, and later the localized word, bookmark, and start or end. So, thank you very much, Michael Müller, Fairlag, and Rosemary Hubberg, Karsten Zeidel from Table Guide, to creating a solution, and creating core contributions to the Libre Office, not only that core contributions, but was not so visible or the contributions that created better user experience using add-ons in Libre Office. Thank you very much. Sorry, maybe I was very low, it was more than five minutes, but if you want to ask something. One sentence, using Libre Office, creating Libre Office add-ons, or dialog windows in Python and Py, it needs a mastery, so it's a scientific research, and I'm very grateful to Ros, who was able to handle this with my help, so thank you, thank you Ros, don't giving up.