Title of this help project

In the pattern editor the following drawing tools are available:

•  Selection
  Select a star. Selected star parameters are shown in the "Star Properties" frame and can be changed.
  
  
•  Brush
  Draws a star for each mouse left click pression. Holding the left mouse button it acts as a brush.
  
  
•  Line
  Left mouse click to select the line starting point, then drag the mouse out holding the left mouse button.
  A tranlucid preview of the line is displayed while dragging. Release the mouse button to confirm.
  
  
•  Circle
  Left mouse click to select the circle diameter, then drag the mouse holding the left mouse button to select the desired diameter.
  A tranlucid preview of the circle is displayed while dragging. Release the mouse button to confirm.
  
  
•  Polyline
  Left mouse click to select the start the polyline. Each mouse click is a polyline vertex.
  A tranlucid preview of the polyline is displayed. Click the right mouse button the confirm.
  
  
•  Floodfill
  Left mouse click to fill the area with the specified stars.
  
  
•  Eraser
  Left mouse click to erase a star. Holding the mouse button and dragging erases with the movement
  
  
  

Also, there are Tools to perform special operations such as:

•  Save as Image
  saves the viewport display as an image on disk
  
  
•  Open Image
  opens an image and applies it as background of the display canvas.
  It can be used as reference or automatically plotted
  
  
•  Plot Image
  it scan the underlying image and try to match the colors with stars of the selected size.
  
  
•  Pick Color from Image
  it captures the color from the underlying image

Some special visual aids can be activated to help the design

• Display Grid
  it displays a square grid (size reflects the star selection)
• Display Circular Frames
  it displays radial frames to reproduce the shell layout (size reflects the star selection)
• Display Image
  Toggle the background image display (if any)