A FEW WORDS ON COLOR...
God loves color! Colors have great significance spiritually as they do in the natural realm. Additionally, combinations of colors (used separately) may also have different meanings. When choosing a color of flag or streamer, I feel it's important for the dancer to keep in mind the symbolic meaning behind each color and choose according to what his or her spirit is feeling. The Lord has given me another revelation about color, thanks to my dealings as an artist- If you think about the individual color breakouts that it takes to make a color, the symbolization is awesome! For example, if you take white (which means purity, salvation, light - see reference below) and red (meaning Jesus' blood, atonement, sacrifice), you get pink which means right relationship, heart of flesh, or intimacy. This solidifies that God is a God of order - even individual colors broken out all work out and make sense. I just think this is SO cool. Try some for yourself!

Below are a few examples - this is only a basic list from personal study, and we always suggest digging into the Word yourself to see what the Spirit teaches you as an individual:
Red: Symbolizes blood atonement, sacrifice of Christs blood (Isa. 1:18, Heb. 9:14)
Gold: Symbolizes the glory of God, divine nature, holiness, precious (Rev. 3:18, Rev. 4:4, Mal. 3:3; 1 Peter 1:7)
Silver: Symbolizes paid price for redemption, price of a soul, Word of God (Matt. 27:3, 1 Pe. 1:18, Ps. 68:13; Heb. 4:12)
Blue: Symbolizes heaven & authority, spiritual or heavenly realm, Throne of God, authority/overcomer (Ex. 24:10, Ez. 1:26, 10:1; Rev. 12:11)
Green: Symbolizes new life, growth, prosperity, health, eternal life, restoration (Ps. 23:2, Gen. 1:30, Lk. 23:31; Rev. 22:2; Ps. 92:14)
Purple: Symbolizes Jesus' royalty, Believer's royalty, Majesty, wealth (Jdg. 8:26, John 19:2, Mk. 15:17-20, Lk. 16:19; 1 Peter 2:9; Esther 1:6)
Pink: Symbolizes right relationships, heart of flesh, intimacy, child-like faith (Romans 3:25, Rev. 19:8; Ez. 11:19; 1 Peter 5:5-6; Song. 1:2; Matt. 18:3-5)
Yellow: Symbolizes sunlight of Jesus, joyful, celebration, God revealed (Matt. 17:2, Rev. 1:16, Ps. 84:11; Ps. 46:4-5; Ez. 1:4; 8:2, Ps. 68:13; 1 Thes. 2:20; Romans 8:18)
Iridescent: Symbolizes overcoming power, fruit of the Spirit (Rev. 4:3)
Orange: Symbolizes praise, protection, harvest, fruitfulness, fire of God, works tested (Matt. 9:38; Col. 1:9-10; 1 Cor. 3:13; 2 Chron. 23:13, Zech. 2:5)
White: Symbolizes Creator, righteousness acquired thru blood of Christ, Bride's garments, Salvation (Rev. 4:4, 6:2 Rev. 19:8, Dan. 12:3)
Black: Symbolizes death, punishment, famine, sin, affliction, death, repentance, bondage (Lam. 4:8; Rev. 6:5; John 3:19-20;; Ps. 107:14)
Rainbow: Symbolizes God's promises (Rev. 4:3), Covenant (Gen 9:13 & 16)