任何为powerpoint形状完全清晰的代码？

Question

'I have tried to apply a color by vba with this code to a shape
.Fill.ForeCorlor.RGB = RGB(250, 0, 0)

'but soon I realize this color stay in memory* even though I tried to clear it with
.Fill.Transparency = 0.5 'Or
.Fill.Visible = msoFalse

'I do not want to use .Fill.ForeColor.TGB = RBB(255, 255, 255) 
 to set another color as it may overlay and block other content

*在记忆中：我的意思是当我将一种颜色应用到一个形状并尝试使用上述方法清除它时，下次我用RGB（230,0,0）定位形状时，这个形状我认为是之前设置的颜色和清除仍然有针对性。

感谢您提供任何帮助 ģ