I have changed the colour of the default UI buttons to RGB for now, more colours will come, plus a tutorial on how to do it yourself. First of all you need to decide which colour you would like, then get the proper tools. Colours
Assuming you have downloaded 7zip and installed it and downloaded your colour choice and extracted it somewhere (anywhere). Now go into your HoN Directory and then into the game folder. Copy the textures.s2z file and paste it (basically creating a backup).
Next we are going to right click on textures.s2z and go to 7-zip -> Open Archive.
You should see several folder and 1 file. Go to \00000000\ui\info\
Now you should see the button files at the bottom and several other (.dds) files. We are now going to open the folder with all our extracted button files and drag and drop (not copy and paste, select them all and hold down mouse and drag them onto the 7-zip window)
You should now see a different Date Modification besides the button files (if not you didn’t do it properly).
Once you see a different Date Modification and the adding has been finished. Close the 7zip window (or hon will give you a null point error)
Start HoN and Enjoy!
There are more modifications and tutorials to come. I’m still working on the manual package updater. It’s rather difficult with the .s2z file format (which is really PKZip???)