#324: unbury the scene-mode picker's expanded 2D/Columbus buttons#331

rdhyee merged 2 commits into

isamplesorg:mainisamplesorg/isamplesorg.github.io:mainfrom

rdhyee:fix/324-scenemode-picker-overlayrdhyee/isamplesorg.github.io:fix/324-scenemode-picker-overlayCopy head branch name to clipboard