How to add background text to such photos? Use the Xiu Xiu procedure in the United States.

First take out a piece of any color, it's pure anyway. Under the material, use blue as the proportion.

If it is too big, you can make it small, if it is too small, you can make it big, and the size is arbitrary, as long as you are satisfied. I'm too lazy to find the real map. Let's use an anime picture instead. .....

Let's put the material on the picture and resize it, if you want to tilt it a little.

The effect is as follows ↓

There will be some confusion, but it doesn't matter, as long as it works.

Let's adjust the transparency, the effect is as follows ↓

Then I added words, any words can be used, and I used a slightly fancy and fresh font to make proportions. The effect is as follows ↓

And that's it. .....