When you create a new layer in Raster Paint, you can change the layer's format as long as you haven't committed any paint strokes to the layer. To change the layer's format, double click the paint node, then click to highlight the raster layer node. You can adjust the settings in the Raster Layer tab. However, once a paint stroke is committed to the layer, the following settings cannot be changed:
If you want to change the format settings of a layer, you must create a new layer and start over.
