Example 1 step, run in order in one session. Every step was executed against the engine and the output below is what it produced.
StreamDensityPlot[{y, -x}, {x, -2, 2}, {y, -2, 2}, RegionFunction -> Function[{x, y}, 0.55 < x ^ 2 + y ^ 2 < 4.2], ColorFunction -> "RedBlueTones", Frame -> False, StreamScale -> Medium, ImageSize -> Medium, BoundaryStyle -> {Orange, Thick}]-Graphics-All recipes · Function reference · Use this from an MCP client