We don't have this spelled out on the site (yet), but here are some evolving guidelines:
Search Boxes
Your app have a search box? Yup, so do
we. Take care in where you place your
search box so its not right next to or
below one of ours.
Branding
Plan to have application branding via
a logo or image in the upper left corner.
Strongly recommend use of your logo.
Yahoo! logo may not be used.
Other Requirements
Links: Notify user when taking them out
of Mail such authentication, etc.
Provide the following:
- Privacy Policy via URL
- Terms of Use via URL
- Help/Contact for customer care via URL
Application Size
Your apps primary canvas should be w/in a tab. With
subsequent task such as a picker or alerts in an overlay.
Note the default visible size to avoid horizontal or
excessive vertical scrolling.
Tab Application Dimensions
675 x 595px [1024x768 screen resolution]
Overlay Dimensions
620 x 500 px max, may be smaller
300x250px
Gallery Image
Icon = 128x128 graphic
A .png with a white background.
Application Name
• App Name = up to 32 characters total. Note:
25 characters visible in folder pane.
• No direct reference to Yahoo!/Yahoo! Mail.
Application Description
• Up to 256 characters total
• Provide a 300 x 250 px sample image
• Include developer name and link to
relevant information.
• Description may indicate application was
developed “especially for Yahoo! Mail” and
should identify added value, i.e. photo
sharing/management, organization,
event planning , etc.