Animated WebGL shader background in the Pulsing Border style. Solid line variant. Generated by the 21st.dev Shader Builder. Adapted from Paper Shaders under Apache-2.0. 4-color palette (#35C4E8, #1261A0, #05070D, #F2FBFF). Features: high intensity. A drop-in, zero-dependency React component for hero sections and animated gradient/noise backgrounds.