Jonas Jenwald 88432a0e3f Improve name consistency in the viewer (PR 15812 follow-up)
This tweaks a few name that originated in PR 15812, to improve overall consistency:
 - Use the `drawingDelay` parameter-name in all methods that accept a delay.
 - Use the `postponeDrawing` variable-name in all relevant methods.
2022-12-28 13:26:01 +01:00
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