Since this helped me I’ll take the liberty of creating a quick ‘How to’ for anyone else that might need this.
Download Stylish Here: http://komodoide.com/resources/addons/jasonbarnabe--stylish/
Step 1: Follow the link above to ‘Install Stylish’. Remember to Right-Click ‘Save As’.
Step 2: Take the .xpi file you downloaded, and literally drag it straight onto Komodo.
Step 3: From Komodo; go to… Tools, Addons
Step 4: Click on ‘User Styles’ in the left pane.
Step 5: Click on ‘Write New’
Step 6: Give it a Name, Give it some tags, and Paste in the CSS you see above.
Step 7: Click ‘Save’
You’re done!