In this function group you can set the colour that you wish to
paint with in the graphic frame. Its selection is described in the
Colour chapter. You can use both list colours and free colours,
and alter them as described in
Colour management. Changing the
brush colour by clicking on a list entry does not alter its current
With a colour of white the brush works as an eraser. The paint
Transparent does nothing at all in the Brush module
– it acts as if there was no colour in the brush.
The Brush module has a colour picker function, which is somewhat hidden, unfortunately.
After you have selected a raster image, switch over to the
Colour selection function group. If you now move the mouse
cursor over the graphic while holding down the [Shift] key,
the current brush will turn into a hollow cross. When you now click on
a point in the graphics frame, the colour under the cross-hairs will
appear in the colour list of this function group in the
free colour field (at the head of the list), and the brush will
adopt the picked colour.
Furthermore, holding down both the [Shift] key and the mouse button while you move the cursor round the image will display the RGB values of each current point in the free colour field. (Note that neither of these functions will work in monochrome screen resolutions, as the pixels of the dithered colours are only black or white.)