When I try to save the following option:
theme_advanced_styles
with the following value:
Float Left=left;Float Right=right;Center=center;Gigantic=gigantic;Huge=huge;Bigger=bigger;Big=big;Small=small;Highlight Color=highlight;Accent Color 1=accent1; Accent Color 2=accent2;Alt List Style=altlist;Decorative Line Break Style=decorative
Clicking on "Save Changes" results in a 404 error
