Bluefish is a multi-platform application that runs on most desktop operating systems including Linux, FreeBSD, MacOS-X, Windows, OpenBSD and Solaris.
Bluefish 2.2.10 Changelog:
Bluefish 2.2.10is a maintenance release. Various language files have been improved, most notably languages that include CSS. There are also various fixes for newer gtk versions and for gtk on wayland (which is now the default on Fedora Linux). A new feature in the 2.2.10 release is the possibility to import/export syntax color styles, included are styles for a light and a dark theme. Last there have been fixes for a few rare crashes.
You just need to add the PPA to your system, update the local repository index and install the Bluefish package:
Open terminal and insert command line...
|$ sudo add-apt-repository ppa:klaus-vormweg/bluefish
$ sudo apt-get update
$ sudo apt-get install bluefish
refer original : https://howto-ubuntunew.blogspot.com/