Post a picture of that same tab (Image) for the Tray section.

Mission accomplished

ok, good.

Dont mind me, i am just stupid. Was have enabled force blur effect in the transparency section from Windowblind.

It's not a matter of being stupid.  It's that there is a plethora of settings, options, and possibilities.

Taskbar seems ready, accept the spacing between the buttons. Is there any solotion to fix this? (Background wallpaper engine)

You need to edit the Taskbar button image to either increase or decrease the space between each frame.  Keep in mind the painting margins I told you about in the other post.

My fault. I was mean start button. Also this margins seems not to work in general. Shouldnt this button not be half disappear now? All i wanna have is, that he is centred and use the full space on is spot.

I think the start button painting margins started being ignored on Win10 (maybe Win8?).

I think your start button is not as tall as your taskbar is painting and it's getting centered vertically.  You could make the button as tall as the taskbar to cover the top and bottom.  If you make it taller it will get shrunk vertically to fit.

I don't know of any way to get rid of the space between the start button and the first taskbar button, I'm pretty sure you're stuck with it.

Given what you're trying to accomplish, the easiest thing to do might be to build the black area directly into the taskbar and lock the area in using the left painting margin.  It would probably take a couple of tries to get it exactly as wide as you want it.

Come to think of it, if you want the black area to remain solid when you adjust taskbar transparency in WBConfig, a better option would be to add an additional layer for the taskbar and lock in the black area with the left margin.  The new layer doesn't need to be the same size as the taskbar itself.  It would look something like this, with transparency on the right (the grey is the image editor background):

You add a new layer by clicking on the "+" button next to the layer field, then adding the painting margins etc for that layer.  Leave the "Normal Blend Mode" as it is.:

Or you could the same type of thing with a Glyph on the Glyph tab.  Like I said, a plethora.

Double layer seems to work. Markins more useless than anyway. Also i dont understand the glyphs. Was made the button under Code editor to Tile=3. All other end in wierd copys and pastes on the whole tastbar, seems randomly pointed than.

The glyph works for me with these settings.  There is no tiling setting for the glyph, maybe you're seeing the taskbar setting in the code editor:

The glyph paints in actual size, as long as it fits, and won't stretch if you resize the taskbar.  The taskbar layer will use its painting margins to resize.

Additional layer on the taskbar works with these settings:

I dont understand this margins. I try almost a hour to rid of this mismatch (right side, all programs and search". My pngs are matching perfect. 

I think you're misunderstanding what the All Programs Background is.  It's not an area on top of the Start Menu, it's part of the Start Menu.  Here's a Start Menu with a fully transparent All Programs Background, it just makes a big hole:

So, from you image above, I'd think that you'd want the right side of the All Programs Background to include the vertical gradient "Rod" that is running down.

Allready ready with Start Menu and Taskbar. Do you think its worth to Upload it, if i finished my work?

Not at all for me to say one way or another.  If you are considering uploading it, I can at least point you to a few guidance threads:

https://www.wincustomize.com/upload-guidelines

https://forums.wincustomize.com/319604/tips-for-uploading-and-moderation

https://forums.wincustomize.com/144943/wincustomize-upload-guide

Seems like there are more out there.

I'm honestly not familiar with the process at all.

One thing that I have seen recommended, particularly regarding WB skins, is "Don't be in a hurry to upload it.  Use it for a month or so first to see what all pops up."