Hi delicacy
I downloaded your skin and was looking at it.
I don't want to do anything yet, because I don't have enough information from you.
It's a very old opaque skin that copies the silver color Windows 7 basic version.
It does not have split buttons. Would need to be updated.
I'm not sure what version of CSM you have,
but later updated versions have a similar skin called Windows Aero (classic 1/2)
The color is more saturated. What I could do is increase the color mask to the maximum at the top and bottom,
and then you can go to the "Menu Look" tab in CSM settings,
check the box for "Override glass color" and
enter D77701 in the "Menu glass color" rectangle area.
That will make the menu have your special blue color.
This all falls apart if you are using a very old CSM version that does not have Override glass color option.
If that is the case I would have to make a real always blue menu.
I'm busy right now, will check back on this site tonight.
See if you can find the Windows Aero skin (the one I'm looking at says 2009-2017 date),
and let me know if it works correctly,
and let me know CSM version you use as well.
note
If you just want an opaque menu, it should be easier to match up than transparent.
Thanks.
Update: I modded the newer Windows Aero skin.
I only added some of your font text, added opaque menu option that has 255 max color on bottom and top of color mask.
Matching color works with opaque taskbar setting and opaque skin setting, along with menu glass override color settings. See picture.
I gave up on modding menu transparency. It is very difficult to have glass menu and glass taskbar match.
It is because the taskbar can not be 100% overridden. There is still Windows 7 color that mixes in on the taskbar.
The only thing to do is set taskbar to 50% opacity with matching menu color, then try and adjust the Windows7 color settings in "Window Color and Appearance"
It can be matched up after 5 minutes of twiddling the sliders. Too much of a hassle.
This skin is only good on opaque CSM settings to match up taskbar and menu with override color.
Is actually worse than the original skin when not in color override settings.
Sorry. That's all I can do.