Builds a backend for one pane, or returns null to decline: a webgl2 factory on a device without WebGL2 says so here, and the chart falls back to canvas2d rather than painting nothing.
webgl2
canvas2d
Builds a backend for one pane, or returns null to decline: a
webgl2factory on a device without WebGL2 says so here, and the chart falls back tocanvas2drather than painting nothing.