Create a flat illustrated icon featuring a blank checklist on a clipboard. Embrace a clean and minimalistic style with simple lines and solid colors. Depict a rectangular shape representing the clipboard, with a clean, empty checklist displayed on it. Use contrasting colors, such as brown for the clipboard and a brighter color for the lines of the checklist. Ensure the lines of the checklist are evenly spaced and distinct. Consider adding a clip or corner detailing to the clipboard to enhance th