ball circle colors decorative glass gloss glossy icon icons isolated jewel logo marble round shine sphere symbol whitespace aircraft attack britain coat fighter military plane Poland polish second sign spitfire strike war wing worl card design emotions graphic graphics isolated half heart hearts love shape valentine valentines day vector white background beverage beware black cup drink hot pictogram pot prohibition red steam suppression warm warning white bell bells cathedral church cloud clouds cross god heaven home house jesus pray religion sky tower wall electronic equipment measuring metering monitor O-scope oscilloscope scope screen sine wave sinusoid test