GIMP tools - BDA

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If the drop-down list does not include the desired size, you can enter your custom size
manually;
13. List of ruler measurement units;
14. Vertical and horizontal rulers are used in drawings, precise arrangement of
objects, etc.
Foreground & Background Colors
The main color of drawing and filling the selected area is the foreground color. This color
is also used as the initial transition color.
The background color is used as the final transition color. By default, the foreground
color is black and the background color is white.
Clicking on the black large rectangle opens the foreground color dialog;
clicking on the white large rectangle opens the background color dialog.
When clicking , the foreground color will be replaced by the background
color. When pressing small the main default foreground color (black) and
background color (white) will be reset.
TASK. Change the foreground and background colors.
1. Press a black large rectangle to open the Change Foreground Color dialog;
2. Select the color;
3. Press OK;
4. Press a white large rectangle to open the Change Background Color dialog;
5. Select a new background color;
6. Press OK;
New image
An image has a complex structure consisting of layers and other objects: selections,
channels, paths, undo history, etc.
How to create a new image?
1. Every time you create a new image, go FileNew. A Create New Image dialog
opens, where settings of a new image such as Width, Height, Resolution, Color
space,Fill with are adjusted.