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It is currently (and has been since the creation of Netbeans) very time-consuming coming up with alternative foreground/background color combinations in the IDE. For instance, if someone would prefer a black-background editor, (s)he has to modify a dozen+ components' foreground/background colors to make this look reasonable (e.g. the keyword, comments, etc. fore/background colors.) Since there is no support for storing these "themes" and sharing them with others, EVERYONE who dislikes the default color scheme has to go through this time-consuming process. This enhancement issue requests that Netbeans includes a mechanism for exporting/importing color/fonts settings that can be shared by the Netbeans community. As a reference, check out the "themes" support in other programming editors (e.g. "gvim") and terminal emulators (e.g. "CRT" in Windows.)
You could try the module in contrib/editorthemes - I wrote it in about 3 hours one afternoon back in December, mainly as a way of saying "look how easy it would be to do a reasonable colors dialog." I'll attach a build of it. The only problem is that it doesn't correctly save the colors - that is, when you restart, they may change back. I've been meaning to build a prototype of an entire replacement, usable, options dialog, which this module would be one panel of, and have the beginnings on my hard disk, but it keeps getting pushed out of the way by other things - not enough spare time.
Created attachment 14411 [details] Prototype editor themes module
it is possible to overwrite(or copy) config/Editors/text/<mimeType>/fontscolors.xml (The file is created after changing of default coloring map via Tools/Options/Editing/Editor Settings/<* editor>/Fonts & Colors customizer) This xml file can be shared. Unfortunately there is no UI for that and you need to overwrite each mimeType. (Issue #22338 covers global settings.)
I would love to see a better way of making themes with NetBeans. Currently, it is difficult to do so and takes lots of time. Even if there was a simple XML or JSON file that listed all colors/font styles, it would help beautiful themes proliferate through the NetBeans community. Let's face it, the default theme is not only ugly, but bad for the eyes and coding. I want a beautiful theme on a dark background and Consolas font. We are not coding with terminals anymore! We need to evolve.
This is majorly annoying and even worse with debugging. It puts a light green background behind white or light gray text. It is unreadable and unusable! Changing the defaults is also a nightmare as it requires changing 20+ settings for debugging / current program counter / broken breakpoint / Conditional breakpoint / etc. This needs major improvement ASAP!
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue. Thanks for your cooperation, NetBeans IDE 8.2 Release Boss