Simplify the following text for a Grade 12 native English-speaking person.
Original: This navy blue color trend was adopted for the Saltire itself by many flag manufacturers , resulting in a variety of shades of blue being depicted on the flag of Scotland ranging from `` sky blue '' to `` royal blue '' to `` navy blue '' .
Simplified: Some flag manufacturers selected the same navy blue color trend of the Union Flag for the Saltire itself , leading to a variety of shades of blue being depicted on the flag of Scotland .