It was an easy print, although I don't have those colours, in black is good also. To make your 3D printed font more readable, ensure the letters have clean, simple lines and adequate spacing. Avoid overly intricate designs, which can blur together during printing. Use a larger font size to maintain detail. For printer settings, set a layer height of 0.1-0.2 mm for finer resolution and better readability. Use a lower print speed (around 40-60 mm/s) to improve accuracy. Infill density of 20-30% is usually sufficient, but increase if more structural integrity is needed. Also, ensure proper bed adhesion with a heated bed set to around 60°C for PLA and 70-80°C for PETG.