如何更改拖动标记的颜色？
在黑白背景下，很难看到黑色圆圈：
Names Default To Here( 1 ); img = New Image( "https://www.nasa.gov/sites/default/files/styles/full_width_feature/public/thumbnails/image/hubble_leda48062_potw2302a.jpg" ); win = New Window( "marker", V List Box (Text Box("black marker hardly visible"), g = Graph Box ( Framesize( 600, 300 ), X Scale( 0, 1000 ), Y Scale( 0, 500 ), Marker Size( 30 ); Color State( {0, 1, 1} ); Drag Marker( [500], [200], showpoints = 0, showpoints = 1 ); ) ) ); imgBox = win[framebox( 1 )]; imgBox << AddImage( Image( img ), bounds( Left( 0 ), Right( 1000 ), top( 500 ), bottom( 0 ) ) ); imgSeg = imgBox << FindSeg( PictSeg( 1 ) ); imgSeg << lock( 1 );
你不能。
哎哟!为什么？这是愿望：
拖动标记：调整颜色（和形状？）的选项
