Blank Button

We are using your plugin for our local intranet. I just added my first series of documents and used a shortcode to add the document category to the correct page. Unfortunately, the document title and the download button link appear to be the same color. If my linked title text is blue, the button appears blank because the background of the button is also blue. If I change the link color to white, the download text appears on the button, but the linked document title text vanishes because the background of the document chart is white.