Faq/Draw/005/en

How to change the colors of an image (JPEG format) before using it in a LibreOffice file?
When you open an image file in Draw, LibreOffice displays the image toolbar just below the toolbar controls. Once the image file is open:
 * 1) select  in the menu bar. A floating window will appear called "Color Replacer."
 * 2) click the icon in the top left of this window [Pipette];color_replacer..png
 * 3) select the color in the image that you want to change. This color will be selected automatically in the Pipette window;
 * 4) select the replacement color in the Replace with dropdown list;
 * 5) click the Replace button to confirm your choice;
 * 6) If nothing happens, or if the entire colored area does not change to the replacement color, increase the tolerance from the default 10%. A value of 30% is usually effective. You can increase the tolerance up to 99%, but an overly large value may cause a larger area than desired to change color;
 * 7) to replace other colors, select another color rectangle in the Pipette window and repeat steps 3 to 6. Finish by clicking the Replace button to confirm your choice.