The Bucket Fill quickly fills a selected object with a color of your choice. Before you start using this function, please make sure that the chosen object has been outlined and is fully visible on your screen. If not, finish your drawings and/or move the object/view, so you can see the entire area. Select the Bucket Fill icon, use the Color Picker to select color and opacity and color the objects you want (the fill will be added as another layer and automatically grouped).