Colorful Test Tubes Vector Laboratory QR Code for Stickers

About this design

Five glass test tubes in teal, red, pink, yellow and purple stand together, each capped with a rounded lid and filled with bright liquid. Square frames drawn inside the teal-edged and yellow tubes hide the finder squares, while the data modules show up as red, green, plum and amber droplets floating through the glass. Dark blobs sit against pale, translucent backgrounds, so the pattern stays distinct despite the colour changes from tube to tube. Glossy white highlights on the glass give the cutout a clean sticker finish.