Базовый контур контрастности

<svg width="800px" height="800px" viewBox="0 0 512 512" version="1.1" xml:space="preserve" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <style type="text/css"> .st0{fill:#333333;} </style> <g id="Layer_1"/> <g id="Layer_2"> <g> <path class="st0" d="M240,43.5v26.52c0,8.84,7.16,16,16,16s16-7.16,16-16V43.5c0-8.84-7.16-16-16-16S240,34.66,240,43.5z"/> <path class="st0" d="M441.98,240c-8.84,0-16,7.16-16,16s7.16,16,16,16h26.52c8.84,0,16-7.16,16-16s-7.16-16-16-16H441.98z"/> <path class="st0" d="M398.82,376.19c-6.25-6.25-16.38-6.25-22.63,0c-6.25,6.25-6.25,16.38,0,22.63l18.75,18.75 c3.12,3.12,7.22,4.69,11.31,4.69s8.19-1.56,11.31-4.69c6.25-6.25,6.25-16.38,0-22.63L398.82,376.19z"/> <path class="st0" d="M240,441.98v26.52c0,8.84,7.16,16,16,16s16-7.16,16-16v-26.52c0-8.84-7.16-16-16-16S240,433.14,240,441.98z"/> <path class="st0" d="M417.57,94.43c-6.25-6.25-16.38-6.25-22.63,0l-43.29,43.29c-26.16-21.19-59.44-33.91-95.65-33.91 c-83.92,0-152.19,68.27-152.19,152.19c0,36.21,12.72,69.5,33.91,95.65l-43.29,43.29c-6.25,6.25-6.25,16.38,0,22.63 c3.12,3.12,7.22,4.69,11.31,4.69s8.19-1.56,11.31-4.69l43.29-43.29c26.16,21.19,59.44,33.91,95.65,33.91 c83.92,0,152.19-68.27,152.19-152.19c0-36.21-12.72-69.5-33.91-95.65l43.29-43.29C423.82,110.81,423.82,100.67,417.57,94.43z M135.81,256c0-66.27,53.92-120.19,120.19-120.19c27.38,0,52.65,9.21,72.88,24.69L160.49,328.88 C145.02,308.65,135.81,283.38,135.81,256z M376.19,256c0,66.27-53.92,120.19-120.19,120.19c-27.38,0-52.65-9.21-72.88-24.69 l168.39-168.39C366.98,203.35,376.19,228.62,376.19,256z"/> <path class="st0" d="M43.5,240c-8.84,0-16,7.16-16,16s7.16,16,16,16h26.52c8.84,0,16-7.16,16-16s-7.16-16-16-16H43.5z"/> <path class="st0" d="M94.43,117.05l18.75,18.75c3.12,3.12,7.22,4.69,11.31,4.69s8.19-1.56,11.31-4.69 c6.25-6.25,6.25-16.38,0-22.63l-18.75-18.75c-6.25-6.25-16.38-6.25-22.63,0C88.18,100.67,88.18,110.81,94.43,117.05z"/> </g> </g> </svg>