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       Layer 1 (top): Learning Libraries
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  <text x="400" y="34"  text-anchor="middle" class="lbl"  font-size="13" fill="#1b5e20">Learning Libraries</text>
  <text x="400" y="54"  text-anchor="middle" class="body" font-size="11.5" fill="#33691e">RSL-RL &#183; skrl &#183; Stable Baselines 3 &#183; RL Games</text>

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       Layer 2: Isaac Lab Extensions
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       Layer 3: Isaac Lab Core
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  <text x="400" y="221" text-anchor="middle" class="body" font-size="11"  fill="#f0ffd0">sim &#183; scene &#183; assets &#183; sensors &#183; envs &#183; managers &#183; actuators</text>
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  <text x="400" y="258" text-anchor="middle" class="body" font-size="10.5" fill="#dcedc8">ManagerBasedRLEnv &#183; DirectRLEnv &#183; DirectMARLEnv &#183; InteractiveScene</text>
  <text x="400" y="272" text-anchor="middle" class="body" font-size="9.5"  fill="#c5e1a5">factory pattern: uniform API dispatches to the active physics backend at runtime</text>

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  <text x="204" y="365" text-anchor="middle" class="body" font-size="10.5" fill="#bf360c">Isaac RTX Renderer &#183; OvRTX Renderer</text>

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  <text x="204" y="456" text-anchor="middle" class="body" font-size="10.5" fill="#d84315">ROS / ROS 2 &#183; URDF &amp; MJCF importers</text>
  <text x="204" y="472" text-anchor="middle" class="body" font-size="9.5"  fill="#bf360c">required for Isaac Sim features</text>

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  <text x="596" y="438" text-anchor="middle" class="body" font-size="10.5" fill="#0288d1">GPU-parallel simulation &#183; Warp kernels</text>
  <text x="596" y="456" text-anchor="middle" class="body" font-size="10.5" fill="#0288d1">MJWarp (MuJoCo-Warp) solver</text>
  <text x="596" y="472" text-anchor="middle" class="body" font-size="9.5"  fill="#01579b">kit-less &#183; no Isaac Sim required</text>

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       Layer 6 (bottom): Universal foundation
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