Long-Term Supported Versions

    Innovation Versions

      Kiran Desktop Environment

      1. Overview

      Kiran desktop environment is a stable, efficient, and easy-to-use desktop environment oriented towards user and market requirements. It consists of the desktop, taskbar, tray, control center, and window management components. This document describes how to use the Kiran desktop.

      2. Desktop

      2.1. Login Screen

      After the installation is complete, restart the system. After the system is started, enter the user name and password to log in to the system. The login screen displays the time, date, power button, and soft keyboard button. The adaptive UI supports screen zooming and multi-screen display. The login dialog box can be switched between screens following the mouse pointer.

      Figure 1 Login screen

      2.2. Main Screen

      Enter the correct user name and password to log in to the system. The main screen is displayed, as shown in the following figure:

      Figure 2-Main screen

      Several icons are displayed on the desktop, such as Computer, Home folder, and Trash. The panel, located at the bottom of the screen, allows you to launch applications and switch between virtual desktops. A desktop is a working area of a user. You will perform operations and run applications on the desktop. You can place the files and applications on the desktop for easy access. Double-click the icons to run the corresponding applications or open the files. You can drag, add, or delete desktop icons. Desktop icons allow you to complete your work more conveniently.

      Figure 3-Computer Computer: Double-click to display all the local and remote disks and folders accessed from this computer.

      Figure 4-Home folder Home folder: Double-click to display the contents in the home directory of the current user.

      Figure 5- Trash Trash: Deleted files are temporarily stored in Trash.

      Shortcut menu: Right-click on the desktop to display the shortcut menu, which provides shortcuts for icon management, folder creation, document creation, desktop background settings, and theme settings.

      Create Folder: Creates a folder.

      Create Launcher...: Creates a launcher.

      Create Document: Creates an empty plain-text file.

      Open Terminal...: Opens the terminal application.

      Organize Desktop by Name: Sorts desktop files by name.

      Keep Aligned: If this option is selected, the desktop icons are aligned to the grid.

      Change Desktop Background: Opens Background to change the background picture of the desktop or lock screen.

      2.3 Panel

      The panel is usually located at the bottom of the screen and includes the start menu button, quick launch area, icons of frequently used applications and desktop applets, and taskbar that displays the currently running application. When you hover the mouse pointer over an icon for several seconds, a white dialog box is displayed, describing the function of the icon.

      Figure 6-System panel

      3. Taskbar

      Taskbar: displays running applications or opened documents. You can click an item on the taskbar to maximize or minimize the selected application window. You can right-click an item and choose Maximize, Minimize, or Close the application window from the shortcut menu.

      Figure 7-Start MenuStart Menu button: Similar to the Start button in Windows. When you click it, the cascaded start menu is displayed.
      Figure 8 Workspace buttonClick to display the workspaces.
      Figure 9 File browser buttonClick to start the file browser to view and manage files.
      Figure 10 Terminal buttonClick to start the terminal.
      Figure 11 Web browser buttonClick to start the Firefox browser.
      Figure 12 Network control iconDisplays the current network status. Click to modify the network configuration.
      Figure 13-Clock buttonDisplays the current date and time. You can customize the display style as required.

      4. Control Center

      4.1. Start Menu Settings

      Choose Start Menu > Control Center > Start Menu Settings. You can set the display mode and opacity of the start menu, as shown in the following figure:

      Figure 14-Start Menu Settings

      The appearance start menu changes based on the opacity and display mode, as shown in the following figure:

      Figure 15-Start menu

      4.2. Greeter Settings

      Choose Start Menu > Control Center > Greeter Settings. In the Kiran desktop, you can set the login screen appearance by choosing Greeter Settings in Control Center, including the background image of the login screen, whether to enable automatic login, zoom ratio, whether to allow login by entering the user name, and whether to display the user list, as shown in the following figure:

      Figure 16-Greeter Settings

      You can also set automatic login. Set the user name and delay for automatic login. After the system is restarted, the user automatically logs in without entering the password.

      Figure 17 Autologin settings

      4.3 Display Settings

      Display attribute customization is required for every desktop environment. The Kiran desktop provides a powerful tool for customizing display attributes. You can choose Start Menu > Control Center > Display Settings to open the Display Settings window, as shown in the following figure:

      Figure 18-Display Settings

      You can set the screen rotation, resolution, refresh rate, zoom rate, and flip. After the settings are complete, click Apply.

      4.4 Mouse Settings

      Configure the mouse by selecting Kiran Cpanel Mouse in Control Center. You can select left-hand or right-hand mode, adjust the mouse pointer speed, set whether to scroll naturally, and set whether to enable the middle button emulation by pressing the left and right button simultaneously. The following figure shows the normal mouse setting window:

      Figure 19-Kiran Cpanel Mouse

      4.5. Account Manager

      Account Manager is an easy-to-use tool for managing users and user groups. You can use this tool to:

      1. Add users and set user attributes.
      2. Modify user attributes.
      3. View user attributes.
      4. Delete users.

      User attributes include the user name, password, and login shell. User group attribute indicates the users in the user group.

      4.5.1 Starting Account Manager

      In Control Center, choose Account Manager to start the account management tool, as shown in the following figure:

      Figure 20 Account Manager

      In the window, you can see the user list on the left and the detailed information on the right. Currently, all users in the system except the root user are listed. Click a user on the left. The detailed information about the user is displayed, including the user ID and user type. Click Create new user. On the page that is displayed on the right, enter the user name, user type, and password, and change the avatar as required. After setting the attributes, click Confirm.

      Figure 21 Creating an account

      Note: If you have set the minimum length of a password (for example, four digits), you must enter a password of at least four digits. Otherwise, the system will not accept the password.

      Click the avatar area to change the avatar. The system has built-in avatars for you to select. You can also add your own avatar and click Confirm to save the settings.

      Figure 22-Change avatar

      4.5.2. Deleting a User

      Click the user to be deleted in the left area and click Delete on the toolbar on the right, as shown in the following figures:

      Figure 23 Deleting a user Figure 24-Confirming the deletion

      In the displayed dialog box, click No to cancel the deletion, or click Yes to confirm the deletion.

      4.5.3. Advanced Settings

      Choose Create new user, enter the user name and password, and then choose Advanced Settings. In the displayed dialog box, set the login shell, user ID, and user home directory.

      Figure 25-Advanced Settings

      4.6. Appearance

      Display attribute customization is required for every desktop environment. The Kiran desktop provides a powerful tool for customizing display attributes. Appearance is a tool that provides unified configuration and management for the desktop background, theme, and font of the system. Choose Start Menu > Control Center > Appearance. The Appearance window is displayed, as shown in the following figure:

      Figure 26-Appearance Preferences

      4.6.1. Theme

      Theme can be used to set the style of the dialog boxes, menus, system panels, and icons in a unified manner or separately according to your preference.

      1. Theme Settings The system provides multiple themes by default. You can view the theme information in the Theme tab page. Click the theme in the Theme tab page to set the system theme, as shown in the following figure:

      Figure 27 Theme settings

      1. Customizing a Theme You can click Customize... to customize a theme based on your preferences, as shown in the following figure. Customization options include controls, color, window border, icons, and pointer.

      Figure 28-Customize theme

      4.6.2. Background

      You can set the desktop background, including the color and style.

      1. Background image settings As shown in the following figure, click a wallpaper in the wallpaper area to set it as the desktop wallpaper.

      Figure 29-Background Settings

      1. Style You can choose how the wallpaper fits the screen by choosing a style from the drop-down list. The styles include tile, zoom, center, scale, stretch, and span.

      2. Adding and removing wallpapers You can click Add... to add your own wallpaper, as shown in the following figure:

      Figure 30-Add wallpaper

      Click Open to add the wallpaper. You can also click Remove to remove wallpapers that you do not like. Simply select a wallpaper and click Remove.

      1. Desktop background color filling settings You can set a color as the background. In the wallpaper tab page, choose No Desktop Background to use a color as the background. The color filling styles include solid color, horizontal gradient, and vertical gradient.

      Figure 31-Background color filling

      4.6.3. Font

      1. Font Settings

      You can set the fonts of the GUI of the system. The font styles include application, document, desktop, window title, and fixed width fonts.

      Figure 32-Font settings

      1. Font rendering and details settings

      Font rendering settings: You can choose one of the following font rendering styles: monochrome, best shapes, best contrast, and subpixel smoothing. By default, best shapes is used, as shown in the following figure:

      Figure 33 Font rendering settings

      1. Font Details Settings You can click Details... to set the font details. Details settings include resolution, smoothing, hinting, and subpixel order.

      Figure 34-Font details setting

      You can choose wether to display icons in menus and on buttons.

      Figure 35-Icon display settings

      5. Desktop Applications

      5.1. Text Editor

      To launch the text editor, click Start Menu> All applications > Utilities> Pluma. You can also start the text editor by entering pluma in the shell prompt. A text editor is one of the most commonly used tools in all computer systems. Whether to you are creating a plain text file, data file, or source program, you need to use an editor. The text editor is used to view and modify plain text files. Plain text files, such as system logs and configuration files, are common text files that do not contain fonts or style formats.

      Figure 36-Text editor

      5.2. Terminal

      In the desktop environment, you can use the Terminal application to enter the command line interface. To start Terminal, choose Start Menu > All applications > Utilities > Terminal, or click the icon on the desktop panel.

      Figure 37-Terminal

      5.3. Firefox

      To launch Firefox, click Start Menu > All applications > Network > Firefox. Firefox is a free and open source web browser. It uses the Gecko rendering engine and supports multiple operating systems, such as Windows, Mac OS X, and GNU/Linux. Firefox is small in size, fast in speed, and has other advanced features, such as tabbed browsing, faster loading speed, pop-up blocker, customizable toolbar, extension management, better search features, and a convenient sidebar.

      Figure 38 Firefox

      5.4 Screenshot Tool

      Choose Start Menu > All applications > Graphics > Screenshot tool to start the screenshot tool. Screenshot tool is a small and flexible screenshot software of the Kiran desktop. The operation UI is simple and easy to use. When the software is started, the icon of the screenshot tool is added to the tray.

      Figure 39-Screenshot icon in the tray

      Click the icon to display the screenshot interface. You can select the screenshot area. You can right-click the icon and choose Open Launcher to set the capture area and delay.

      Figure 40-Screenshot UI Figure 41-Launcher UI

      In the displayed dialog box, click to save the file to the desktop, or choose Options and select a custom save location, as shown in the following figure:

      Figure 42-Screenshot process

      5.5 Network Settings

      The Kiran desktop uses NetworkManager as the network configuration tool. NetworkManager can set, configure, and manage various network types, and provides advanced support for mobile broadband devices, Bluetooth, and IPv6 protocol. Choose Start Menu > Control Center > Advanced Network Configuration, or right-click the network icon in the lower right corner of the desktop and choose Edit Connections..., as shown in the following figure:

      Figure 43-NetworkManager

      Wired connection settings: Select the current NIC. For example, ens33 is the NIC of the current system. Select the NIC and click the edit button. The NIC editing dialog box is displayed:

      Figure 44 Editing an NIC

      IPv4 Settings are frequently used. In this example, DHCP is selected to obtain the IP address and DNS server. The system automatically obtains an IP address for the user. When you need to manually enter the IP address, select Manual from the Method drop-down list, as shown in the following figure:

      Figure 45 IPv4 settings

      Click Add, enter the IP address, subnet mask, gateway, and DNS server, as shown in the following figure:

      Figure 46 Setting the network IP address and DNS

      Enter the IP address, subnet mask, gateway, and DNS, and Click Save. Click the network icon in the lower right corner of the desktop, choose Disconnect to disconnect from the network, and then reconnect to the network.

      5.6. Time and Date Manager

      To set the date and time, select Time And Date Manager in Control Center, or click the date area in the lower right corner of the desktop. The following window is displayed:

      Figure 47 Time And Date Manager

      Automatic synchronization: Enable Automatic synchronization and connect to the Internet to automatically synchronize the date and time. Time zone settings: Click Change Time Zone, select a time zone from the list on the right, and then click Save.

      Figure 48 Change Time Zone

      Manually set the time: Disable Automatic synchronization and click Set Time Manually to manually set the year, month, day, and time. After the modification is complete, click Save.

      Figure 49 Set Time Manually

      Modifying the date format: Click Time date format setting to modify the date format. You can set the long and short date display formats, time format, and whether to display seconds.

      Figure 50 Time date format setting

      Bug Catching

      Buggy Content

      Bug Description

      Submit As Issue

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      Bug Type
      Specifications and Common Mistakes

      ● Misspellings or punctuation mistakes;

      ● Incorrect links, empty cells, or wrong formats;

      ● Chinese characters in English context;

      ● Minor inconsistencies between the UI and descriptions;

      ● Low writing fluency that does not affect understanding;

      ● Incorrect version numbers, including software package names and version numbers on the UI.


      ● Incorrect or missing key steps;

      ● Missing prerequisites or precautions;

      ● Ambiguous figures, tables, or texts;

      ● Unclear logic, such as missing classifications, items, and steps.


      ● Technical principles, function descriptions, or specifications inconsistent with those of the software;

      ● Incorrect schematic or architecture diagrams;

      ● Incorrect commands or command parameters;

      ● Incorrect code;

      ● Commands inconsistent with the functions;

      ● Wrong screenshots.

      Risk Warnings

      ● Lack of risk warnings for operations that may damage the system or important data.

      Content Compliance

      ● Contents that may violate applicable laws and regulations or geo-cultural context-sensitive words and expressions;

      ● Copyright infringement.

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      Bug Catching
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