Effect for UI's

So I created a mini-map in the corner of my screen - it’s working fine btw. But I want to make an old effect for the map. Something like the marauder’s map (Harry Potter):

Any suggestions?

Can you describe what you want it to do, not all of us are familiar with the Harry Potter series.

No function I just want to colour effect to the map so it gives the effect as the map u see above.

You’ll have to set the Background color to that color seen above. As for the effect, you’ll need to create the texture yourself as Roblox doesn’t have that effect. I hope this answered your question.

Basically you will need to use an external editing software like adobe photoshop or something to add these effects.