Revision Date: 14 April 2021

Main Window

The user interface (UI) in the following screenshot has been divided into ten areas: User Interface
User Interface
  1. Title Bar

    This shows the name of the image open on the canvas (or "untitled" if unnamed) and the version number.
    If the current file has unsaved changes, the file name will be preceded by an asterisk.

    Filename with unsaved changes asterisk
    Filename - preceding asterisk indicates unsaved changes
  2. Menu Bar

    This area houses seven menus on the left and six utility icons on the right.

  3. Tool Bar

    Immediately below the Menu Bar is the Tool Bar. This houses several buttons and controls for executing common commands and accessing various features. On the second rank, adjustable parameters for the active tool are shown.

  4. Image List

    Each image that is open shows a thumbnail in the image list. These work much like the tabs in a web browser.

    Click on an image to switch to it. The thumbnail will become highlighted in the Image List and the associated image loaded onto the canvas.


    In the images in the Image List can be reordered using drag-and-drop. Click, hold and drag the thumbnail to a new position in the Image List to relocate it.

    If an image unsaved changes, the thumbnail will have an asterisk placed in the top left corner.

  5. Canvas

    This is where the image is shown and edited. All drawing, selecting and other editing actions occur here.


    The canvas and the surrounding grey area in the screenshot above are collectively called the Editing Window in these documents.
    The Editing Window can be partially filled (as seen above), completely filled (maximized) or the canvas may be zoomed in beyond the visible limits of the Editing Window.


    The size of the default/initial image ("Untitled") is 800x600 pixels scaled by the system DPI setting. E.g. at 150% DPI scaling the image will be 1200×900.

  6. Tools Window Tools Window

    This window is where the tools are activated or chosen. The active tool is highlighted in the Tools Window.

    Hovering the pointer over a tool icon will display a tool tip for that tool.

  7. History Window History Window

    Every editing action performed on an image within the current session is listed in this window. Closing or closing the image removes the entire editing history, clearing it entirely.

    It is possible to step forward and backward in the image editing History by using Undo, Redo or clicking on an entry in the History Window. Toggle between one entry and the previous one by clicking repeatedly on the same entry in the History Window.

  8. Layers Window Layers Window

    Every image contains at least one layer. The Layers Window is the primary area for adding, removing, accessing and managing layers. Layer Properties can be accessed by double-clicking on a layer.


    New to is the ability to reorder layers in the Layers Window using drag-and-drop. Click, hold and drag the layer to a new position in the Layers Window to relocate it.

  9. Colors Window Colors Window

    This is the primary area for selecting and managing colors. It contains several controls for adjusting colors and opacity.

  10. Status Bar

    This area is divided into several sections. On the left, it displays quick help and status information. In the center, it displays rendering progress (if required). On the right information on the image size, cursor location and units of measurement are displayed beside controls for the view size.

Color Schemes offers several color schemes. These are selected from the Settings Dialog (Settings Icon + User Interface tab). color schemes
Color Schemes