4th of July chemical reaction display event explode exploding explosion fire works firework fireworks fourth of july independence day July 4 New Year pyro reaction rocket rockets show smoke abstract american art blue country design dez pain emblem flag fouth of july heart illustration insignia july 4th liberal liberation liberty line lines love love of country medal modern patriot patriotism red red white and blue spiral star stars stripes swirl symbol usa valentine vector white xymonau banner button election hyperbolic round border document eagle formal gold official page paper seal traditional