Concepts and basic operations for Windows application.Concepts and basic operations for file and folder management on Windows.Concepts and basic operations of file downloading by web browser.

Especially, basic knowledge about the following are indispensable. This software requires basic knowledge about Windows operation.

Data protection functions to avoid abnormal termination such as bugs.

A simple but powerful user interface, easy to learn.

Highly accurate composition with 16Bit ARGB channels.

There is also a set of vector drawing tools designed for inking, which, like the raster tools may be made pen pressure sensitive. Various raster drawing tools, such as the Airbrush, Watercolor, Pen and Marker are implemented and can all be readily modified and saved in slots in the application’s user interface. The swatches window allow you to save colours. There is an application-wide scratchpad (which may be used as a colour mixing panel) that is stored across sessions. It’s also possible to open several viewports for the same document at the same time. The toolbar at the top of the screen also has a button that allows you to mirror the drawing view without mirroring the actual painting. The drawing canvas may be zoomed and rotated using the navigator’s sliders or the hotkeys specified on the keyboard. Multiple documents can be opened at the same time using the user interface. S.A.I is a portable painting application. It has been available on Microsoft Windows from 98 to 10.

SAI’s official release (1.0.0) was on February-25-2008, and an update preview was released shortly after. Development of the software began on August-02-2004 and the first alpha version was released on October-13-2006. SAI or Easy Paint Tool SAI (ペイントツールSAI) is a lightweight raster graphics editor and painting software for Microsoft Windows developed and published by Systemax Software.

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