This is a great trick, but it's only really useful if you're using a CRT or are on a very memory-constrained platform where you can't store a separate 'bold' font.
I've implemented it here https://twitter.com/ViolenceWorks/status/1387519297262477312 and barring the exception of fiddling around with dotclocks and such, it would be far simpler to have a different 'bold' font. Of course, if you're using a CRT doing this is as easy as 'keep the gun on a bit longer if it's bold'.
This is one of the rare cases where you really get to see the relation of a CRT with the thought of, 'a technology is only perfected after it has been rendered obsolete.'
I've implemented it here https://twitter.com/ViolenceWorks/status/1387519297262477312 and barring the exception of fiddling around with dotclocks and such, it would be far simpler to have a different 'bold' font. Of course, if you're using a CRT doing this is as easy as 'keep the gun on a bit longer if it's bold'.
This is one of the rare cases where you really get to see the relation of a CRT with the thought of, 'a technology is only perfected after it has been rendered obsolete.'