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Since 2000

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Color opacity task

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This short-term memory task requires a fine distinction of shades between colors. By adding the number of choices, the task becomes more difficult because the colors offered become more similar to each other.

This task is based on the Opacity-Transparency of the displayed colors.

Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency.

When referring to color, transparent color is a color that lacks color or a color that's the same color as the background.

A limited number of settings can be changed within the application.

Language interface: Simple English

Software requirements: Any web browser with ECMAScript 2015 (ES6) support. See browser list: here.

The application has been tested on the following web browsers: Firefox, Chrome, Edge, Internet Explorer 11, Opera. We mainly develop all our web applications in the Firefox browser. Therefore, generally speaking, the latest version of Firefox is always the most secure solution for reliable use of our web applications.

Licence: GNU Lesser General Public License

Version: 1.0