RGBA map brush

The 'RGBA map brush' window is activated by selecting the 'Tools→RGBA brush' option in the menu or by viewing a RGBA map layer (e.g. alpha map), and then clicking on the 'edit active map layer' toolbar icon shown below:

	The 'edit active map layer' icon.

Decimal mode	Hexadecimal mode

Left-clicking and dragging the mouse around on the RGBA map will apply the setting from this window.

If you change the mouse mode (e.g. to zoom, etc.), you can re-activate this tool by left-clicking within the window.