Coloured thread can also indicate the manufacturer of the rope
personnel strength
The color red is used to indicate the level on a SITREP report that defines an area that has been reduced in strength. Green and amber indicate levels that are performing at or above expected strength.
No. Colored threads are used merely for identification of the type of rope made by a particular manufacturer. Most ropes are available in identical styles, but varying diameters. The varying sizes of the same style of rope will all have the same color pattern. For example, Yale Cordage, a rope company in Maine makes a rope called Double Esterlon. It is available in 18 different diameters ranging from 1/4" thick to 2" thick. All sizes have the same color pattern- white rope with 4 green strands lying next to each other. For proof, you can see this rope at http://www.yalecordage.com/html/pdf/industrial_marine/low/Pg8.pdf
it is a sewing thread
When doing applique you should use a fine weight thread, silk is often preferred, to match your applique or a shade lighter if necessary. When in doubt, or with multicolored patterns, gray can be used. On a side note, when piecing gray thread also works well as a "universal color".
demonstrates depth
The color of the star Indicates its Temperature.
Having black as your favorite color may indicate a preference for sophistication, elegance, and mystery. It can also suggest a desire for simplicity, strength, and authority.
Pointy. Colour itself depends on the thread.
guage
guage
The color maroon is symbolic of courage, bravery, heroism, and strength.