I have found a bug on svg export.
If you try to export a calendar to svg and that calendar has background colors on the header and custom text on the cells they will not be displayed properly on the svg file.
The header colors will not show up at all.
On the custom cells the color will appear but instead of showing the text (eg. refresh) it will display the html of that cell.
See files atached for a better perception of the error.
The png file is a print screen from the calendar on the website, the svg file is the result of an export.