Create Redactor-Plugin for Buttons

I need you to create a Redactor (Version 1) Plugin for inserting buttons. Redactor is a WYSIWYG Editor written in Javascript. I will send you the Redactor files, so you can work with them. I already uploaded the Redactor documentation which shows you exactly how to build a plugin. The plugin should be very similar to the existing link-plugin. It should do the following: - create a <a href=.. class="button bg-color">Buttontext</a> element - the modal to create the button should contain: Buttontext, links (incl. predefined links), "open in new tab"-checkbox, option to choose between 2 predefined background-colors - depending on the background-color, the button should have the class "bg-color" or "bg-color2" - for the predefined links there is already a redactor plugin called "predefined links". I will send you this too - when initializing Redactor, I need to set the predefined links (just as I do it with the "predefined links"-plugin) - the behaviour should be just like the link-plugin (e.g. when I have some text selected and click on the "button"-button, a modal is openend and the selected text is pre-inserted as the buttontext) - when inserting a button, the current element should be closed, e.g.: I am currently writing in a <p>-element. When inserting the button, the <p> element should be closed with </p> and the button should be inserted, so it's not an inline element - the language of the plugin should be German. But you can first build it in English, then I will send you the translation and you can copy&paste it Thanks!