org-agenda-export-html-style
org-agenda-export-html-style is a variable defined in `org-agenda.el
'.
Its value is nilDocumentation: The style specification for exported HTML Agenda files. If this variable contains a string, it will replace the default or, if you want to keep the style in a file, As the value of this option simply gets inserted into the HTML header, you can "misuse" it to also add other text to the header. You can customize this variable.