An easy way to generate server-sided images via dialog GUIs and map art.
Enabling "Invisible Frame" allows transparent images!
Using Custom Images opens a Dialog for further setup.
This feature can be accessed by crafting the "Custom Image" item and using that just like a normal painting!
Place them anywhere you like!
Use Glowing Ink Sac's on Custom Images to name them glow!
Use any image in any aspect ratio in any painting as you see fit! Enabling "Stretch to Fit" will fill any gaps and otherwise just blur away the gaps.