How do you not color lines in medibang paint pro?

To avoid coloring outside the lines in MediBang Paint Pro, you can use a clipping mask. Create a new layer above your line art layer, and then right-click the new layer and select "Clipping Mask." This will restrict your coloring to the area defined by the line art underneath. Alternatively, you can use the "Magic Wand" tool to select the area you want to color, ensuring you only fill in the selected regions.