Subj : Black-on-black doesn't change attributes in Frame.js implementation of
To   : GitLab note in main/sbbs
From : Josh Renaud
Date : Thu Nov 13 2025 07:06:57

https://gitlab.synchro.net/main/sbbs/-/issues/1007#note_7875

A better check might be `if(attr !== undefined)`? Or maybe a comparison with the existing attr to see if they're different?

```
if(attr !== undefined && properties.data[x + position.offset.x][y + position.offset.y].attr != attr)
	properties.data[x + position.offset.x][y + position.offset.y].attr = attr;
```
?
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