This Linux distribution meets all the minimum requirements. Simply extract the archive to a folder of your choice and start HTML-Kit Tools.
mkdir ~/hkt cd ~/hkt tar -xzf hktools.tar.gz ./hktools
Extract HTML-Kit Tools to a folder of your choice, for example:
mkdir ~/hkt cd ~/hkt tar -xzf hktools.tar.gz
The GTK+ version included in this Linux distribution doesn't need to be updated. However the included Mono version does not meet the minimum requirements. To enable internal previewing, make sure that Mozilla with Gecko engine bindings is installed. If the preview tab doesn't work, install the gecko-sharp2 binding using the Package Manager. To make sure that the paths and other installation settings are registered, restart or login again. Start HTML-Kit Tools:
cd ~/hkt ./hktools
Extract HTML-Kit Tools to a folder of your choice, for example:
mkdir ~/hkt cd ~/hkt tar -xzf hktools.tar.gz
The GTK+ and Mozilla related libraries included in this Linux distribution meet the minimum requirements. Download and run the Mono installer (Linux Installer for x86 distributions). Once Mono is installed, close the current Terminal/shell window and open a new one (or restart the system), to make sure that the paths are registered. Start HTML-Kit Tools.
cd ~/hkt ./hktools