Use GIMP's digital paint brush to resemble the colors of a rainbow.
You can use GIMP to design and edit digital graphics. GIMP's toolbox contains a "Paintbrush Tool" that has settings that you can adjust to meet your preferences. You can alter the mode, brush type, color and scale of the tool as your project dictates. You can even opt for the tool to have a gradient rainbow pattern that you can use to paint within your workbook.
Instructions
1. Launch GIMP and create a new workbook by clicking on "File" and "New." The dialog "Create a New Image" will appear; choose the "Template" that will meet your needs or enter in customized dimensions, and click "OK.
2. Select the "Paintbrush Tool" located in the main toolbox. Once you have clicked on the icon, the accompanying settings will appear at the bottom of the toolbox. Adjust the mode, brush type and scale as desired.
3. Click on the "Use color from gradient" box at the bottom of the toolbox. A color gradient preview box will appear. Click on the preview and select the rainbow pattern of your choice such as "Abstract 2" or "Pastel Rainbow." This will make your paint brush rainbow.
4. Click or double-click-and-drag your cursor across the workbook to add paint strokes. Adjust your rainbow-style settings as you see fit, saving your completed workbook using the "File" and "Save As" function.
