Added Digital Painting

wiki/digital_painting.md

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+# Digital Painting
+
+Digital Painting is the creation of artwork using a computer or tablet instead of traditional media
+such as paper or canvas.
+It is commonly used for illustrations, concept art or comics.
+
+## Hardware
+
+Digital painting is typically performed using a
+[graphics tablet or a tablet computer](/wiki/smart_device.md#smartphones-and-tablet-computers) with
+an active stylus that supports pressure sensitivity.
+
+## Software
+
+Many digital painting applications are available.
+Popular options include the following.
+
+- [Krita](/wiki/krita.md) is a free and open-source program for digital painting.
+    It is available for [Linux](/wiki/linux.md), [Windows](/wiki/windows.md) and 
+    [Android](/wiki/android.md).

wiki/krita.md

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+# Krita
+
+[Krita](https://krita.org/) is a free and open-source cross-platform
+[digital painting](/wiki/digital_painting.md) program focused on illustrations, concept art, comics
+and animation.
+It is available for [Linux](/wiki/linux.md), [Windows](/wiki/windows.md) and
+[Android](/wiki/android.md).
+
+## Setup
+
+The Krita program can be installed from source as described [on GitHub](https://github.com/KDE/krita).
+Alternatively many [Linux](/wiki/linux.md) [package managers](/wiki/linux/package_manager.md)
+package Krita in the `krita` package.
+
+The software can also be installed on [Android](/wiki/android.md) via
+[F-Droid](/wiki/android/f-droid.md) packaged under
+[org.krita](https://f-droid.org/packages/org.krita/).
+
+## Usage
+
+This section addresses the usage of Krita.
+
+### Disable Finger Drawing (Pen-only Mode)
+
+On [Android](/wiki/android.md), accidental touches from your hand can create unwanted brush strokes.
+While palm rejection is primarily handled by the tablet hardware, Krita allows disabling drawing
+with touch input.
+
+To enable pen-only drawing navigate to *Settings*, *Configure Krita*, *General* and *Tools* and
+disable *Enable Touch Painting*.
+Afterward, restart Krita.
+
+After restarting, only the stylus can draw, while finger touches are ignored.
+This provides a better drawing experience on devices with active stylus support.