There is a slight tint on the background of any label. The tint is very subtle (low alpha) and it seems that it’s in the color of the label.
The issue appears both in the editor and in preview/release in web for me. Somebody also spotted this on mobile builds: https://www.reddit.com/r/gamedev/comments/gline1/were_having_a_problem_with_labels_in_cocos/
- add a label;
- set the cache mode to NONE/BITMAP (with CHAR, the issue is still there, but less apparent);
- notice the tint in the background.
If it’s not immediately apparent, try playing with the luminosity settings of the monitor.
Could really use the input of a dev here, @jare - please?