Ключевые слова: axon, background, black, body, brain, cell, cns, concept, contour, design, dopamine, editable, element, flat, glyph, graphic, icon, illustration, image, isolated, line, linear, medical, minimal, myelin, nerve, nervous, neuro, neurology, neuron, neuroscience, outline, pictogram, receptor, science, shape, sign, silhouette, simple, stroke, symbol, synapse, system, thin, white,