Solution how to install theme on Windows, with some other tweaks

[Maaciej]

I tried to make JDownloader v2.0 as dark as possible and usefull for a long time.
I was able to tweak some color settings but I was all time looking for a better way.

I was probably on this page few times and it never worked.
Until now, when I need to reinstall JDownloader because it became unstable with many graphical glitches.

I was never able to install any theme downloaded from Internet, but now I found a way to make it with JDownloader-2-Dark-Theme-master and here comes how-to.

It was made on Windows 10, and it should work on Windows 8 also, and probably other Windows also.

0. Backup your JDownloader settings: Menu File->Backup-> Backup all settings.

1. Install JDownloader v2.0.

2. Make automatic update, and start download something from youtube, this way you can download ffmpeg, because later it can broke theme.

3. Next set Look and Fell BlackEye theme, it will download and install Synthetica I think.

4. Restart JDownloader, check if the BlackEye is set and there should be some changes to darker color but not all is nice.

5. Close Downloader and now is the moment to change few things in the install folder.
   Copy syntheticaBlackEye.jar from JDownloader-2-Dark-Theme-master\ to libs\laf, first you can alter it to make green progress bar (recompress file with new pictures from
   JDownloader-2-Dark-Theme-master\themeNameHere.jar).

This is optional, but it helps me:
-in themes\standard\org\jdownloader\images\ there are popDownLarge.png and popUpLarge.png, wide black arrows, first I made them white, and copied over popDownSmall.png and popUpSmall.png, it makes some elements of interface more visible.
-in themes\standard\org\jdownloader\images\exttable\ there are two files, sortAsc.png and sortDesc.png, they are two little black arrows, I changed them to white arrows which you can later see when you sort columns (very small, too small).
-you can also edit pictures from themes\standard\org\jdownloader\images\logo, PNGs with the word "logo" in the names are JDownloader icon used as the icon of program on Taskbar, it can also be (dark) B&W.

6. Restore your backup, if you have one, set BlackEye theme, restart and check if it is set and then backup this settings to file, example backup.jd2backup

7. backup.jd2backup is a zip file, unpack it and you get cfg\ folder, to this folder you need to copy two files:

-to cfg\laf\ copy SyntheticaBlackEyeLookAndFeel.json from
JDownloader-2-Dark-Theme-master\jd2backups\JDownloaderDarkOnly, lenght 1032 bytes. Because when the theme is set all changes to Advanced Settings colors don't work, and there were problems with proposed settings so I changed three lines in the file to:
"colorfortablepackagerowforeground" : "#ffeeeeee",
"colorfortablemouseoverrowbackground" : "#ff333388",
"colorfortablealternaterowbackground" : "#ff444444",

-to cfg\ copy SyntheticaBlackEyeLookAndFeel.json from
JDownloader-2-Dark-Theme-master\jd2backups\JDownloaderDarkOnly\cfg, length 4204 bytes.

8. Compress altered cfg\ folder to new zip with the name like newsettings.jd2backup

9. Restore settings from newsettings.jd2backup, there should be dark theme, your settings and B&W icon on Taskbar if you changed it.

Thank you Vinylwalk3r very much!

Final effect:

[Maaciej]

small update, font color for selected items;
"colorfortableselectedrowsforeground" : "#ffff5555",

[LegendaryOverlord]

How do you get the top bar to be dark on Windows?

[nschonni]

Enabling the LAFSettings; Windows Decoration in Advanced Settings sets it to dark, but it's actually replacing the windows top bar entirely