如何更改菜单条的背景色

hi朋友，当我单击菜单条下拉菜单项时，如何更改菜单条的背景颜色，但我想更改菜单条上的toolstripemenuitem1的颜色，我编写代码单击事件，但关闭后会更改背景色当我单击它时，拖放菜单未打开.
以及如何在我的鼠标位于该工具栏上时更改toolstripmenu项的颜色，以便默认情况下将其更改为垂直颜色，但是我想将其设置为我的自定义颜色，我该怎么做呢?我不得不在所有事件上使用click事件鼠标其他事件，但是当我的鼠标移到它上面时它不会改变，当我的鼠标离开它时它会改变，但是我想通过鼠标事件来改变它怎么办，请帮帮我.

hi friend how can I change the background color of menustrip when I click on menustrip dragdown items get opend but I want to change color of toolstripemenuitem1 which is at menue strip i write code to click event but it changes the back color after closing the dragdrop menu not on when i click on it.
and how to change color of toolstripmenu item when my mouse is over that toolstrip so that by default it get changed to a perticular color but i want to set it to my custome color how can i do it I had use click event mouse over event all other events but it not changing when my mouse is over it, it gets changed when my mouse left it but i want to change it over mouse event how to do it please help me. thanks.