Like the blocks “call Button With Icon From Material Font/Font Awesome/Picture”, if possible, there could be a block to do the same with a font file imported to the assets. There are several good online services to create custom font files with names/ligature_names (much like those of Material Font/Font Awesome) and the usage would generaly wield better results than with an image.
Watch full tutorial here
Maybe try to use English as a language. There is a lot that is being said but majority of users can not understand it.
I have added subtitles in English, so i think user can learn from worldwide