Wikipedia:Wikipedia Signpost/Templates/Voter/Documentation

Parameters
This template is a proposal for an in-wiki polling apparatus for weekly use by the Signpost. The parameters are as follows:


 * question: Question under consideration in the poll. (required)
 * votepage: Page that the votes will be stored on (required). If in doubt, choose.
 * option1: Name of the first option, as reported in the legend and in the vote button. Defaults to.
 * option1color = Color of the first option choice; defaults to, Foundation blue.
 * option2: Name of the second options, as reported in the legend and in the vote button. Defaults to.
 * option2color: Color of the second option choice; defaults to, Foundation green.
 * option3: Optional. Name of the third options, as reported in the legend and in the vote button. No default.
 * option3color: Optional. Color of the third option choice; defaults to, Foundation red (if the third option is enabled at all).
 * minimum: Minimum number of votes that must accrue before the poll will display the visualization; before this many votes are made the poll will tell readers that X more votes are needed based on the size of the deficit. Defaults to 10.
 * break: Set to "yes" to break columns between the buttons to allow longer button names. If this is not set, the template will try and auto-detect a sensible value.
 * expiry: The number of days after which the poll is closed; defaults to 14 days (two publication cycles). Note that is this defined from the day that you create the template not from the day that you actually publish the article!
 * header: Text that goes in the poll header. The default is "Signpost poll".
 * icon: Changes the image that is displayed in the top-right corner of the poll. As used in the Signpost other images are not recommended.
 * overlay: Overlay on the stacked bar chart which produces the template's fancy visualization. By default this is File:Foundation Logo Transparent.svg, a transparent version of the Wikimedia Foundation's logo. With some basic vector editing skills such images are easy to make; requirements for a working overlay are:
 * Square image; the transparent Foundation logo is a vector  with native resolution of.
 * Canvas whitespace; The bar chart is not displayed wherever the image canvas is explicitly white.
 * Transparent logo; this is where the chart will be displayed.

Test cases
For test-cases see here.