Changes

====Imbuing Color with Meaning====

====Imbuing Color with Meaning====

Sugar treats color differently from the typical UI: colors are used in the interface represent the ''individuals'' who are interacting within the mesh, not the activities or objects they are using. Children personalize their laptops and their presence on the mesh by selecting a dual-tone color scheme. All of the activities, objects, and comments belonging to a child take on her own colors—even when they appear on the laptops of other children on the mesh—forming a visual identity that supplements her name and attributes.

Sugar treats color differently from the typical UI: colors used in the interface represent the ''individuals'' who are interacting within the mesh, not the activities or objects they are using. Children personalize their laptops and their presence on the mesh by selecting a dual-tone color scheme. All of the activities, objects, and comments belonging to a child take on her own colors—even when they appear on the laptops of other children on the mesh—forming a visual identity that supplements her name and attributes.

This color treatment extends even within activities. For instance, in the Web activity a link-sharing feature encourages children to browse the web in groups, sharing interesting or useful pages with each other. Each URL object posted for the others to view appears in the colors of the child who posted the link.  Similarly, chat bubbles on the Bulletin Board take on the children's colors. Likewise, any object, text, or other interface element within your activities that corresponds to a particular child should be rendered in this manner. When the display runs in grayscale mode, this colored visual identity is less apparent.  However, significant differences in value, according to the Munsell System, ensure that the XOs retain a level of visual distinction even in the absence of color.

This color treatment extends even within activities. For instance, in the Web activity a link-sharing feature encourages children to browse the web in groups, sharing interesting or useful pages with each other. Each URL object posted for the others to view appears in the colors of the child who posted the link.  Similarly, chat bubbles on the Bulletin Board take on the children's colors. Likewise, any object, text, or other interface element within your activities that corresponds to a particular child should be rendered in this manner. When the display runs in grayscale mode, this colored visual identity is less apparent.  However, significant differences in value, according to the Munsell System, ensure that the XOs retain a level of visual distinction even in the absence of color.

To maintain a degree of purity to this system, interface elements, buttons, and other icons that belong solely to the activity and not to any particular child should remain in grayscale to the extent possible. While removing color as a primary visual clue may seem counter-intuitive, it does encourage the icon's form to clearly indicate its function. Since the laptops will also run in grayscale mode, clearly distinct shapes become essential in the absence of chroma information, and so limiting activity icons to grayscale by default ensures compatibility in both modes. Additionally, keep in mind that the traditional method of "graying-out" inactive buttons and controls simply will not function on the laptops and must be avoided.  Instead, please adhere to the guidelines for [[OLPC Human Interface Guidelines/The Sugar Interface/Icons#Active vs. Inactive Icons|inactive icons]].

To maintain a degree of purity to this system, interface elements, buttons, and other icons that belong solely to the activity and not to any particular child should remain in grayscale to the extent possible. While removing color as a primary visual clue may seem counter-intuitive, it does encourage the icon's form to clearly indicate its function. Since the laptops will also run in grayscale mode, clearly distinct shapes become essential in the absence of chroma information, and so limiting activity icons to grayscale by default ensures compatibility in both modes. Additionally, keep in mind that the traditional method of "graying-out" inactive buttons and controls simply will not function on the laptops and must be avoided.  Instead, please adhere to the guidelines for [[OLPC Human Interface Guidelines/The Sugar Interface/Icons#Active vs. Inactive Icons|inactive icons]].

See [[XO colors]] for full detailed example list, of defined and approved the XO color pallet.

See [[XO colors]] for the full list of defined and approved XO colors.

====Contrast in the Munsell Colorspace====

====Contrast in the Munsell Colorspace====