Hi Glen,
hope you're doing well!
Actually, I think there were some issues reported that proposed better default color
choices. Can't look that up right now, but as usual, you know we love having your input on
things, so please do open an issue about such things, **especially** since "yellow is
hardly visible" is an accessibility problem, and that's kind of contrary to our mission of
bringing SDR to the masses.
As a quick and easy (and surprisingly *less* work if you have multiple flow
graphs) fix:
Did you know that you can specify a stylesheet for the flow graphs you build? In your
installation (i.e., under /usr/ if this is a system installation, under places like
/usr/local if this is a self-built GNU Radio), you will find
share/gnuradio/themes/alt.qss, dark.qss, plain.qss and projector.qss .
You can use these in the "options" block in your flow graph; select them as "QSS
Theme".
You will see that they can quite drastically change the look of your visualizations! And:
they are simple text files. Look for example at alt.css, make a copy of that, fix the
colors as you'd like them to be! (For example, gold could be represented as #FFD700 or as
rgb(250, 212, 0).)
The big advantage is that you can use the same style sheet for *all* your flow graphs, and
they will *all* use the same colors, without you having to manually fix the code, or even
do anything specific each visualization sink.
If you happen to create a specific style that you find generally useful: I'd love to (and
I mean that, we're not making any good use of this feature) help getting that style
shipped with upstream GNU Radio (i.e., installed alongside the others listed above), so
that you (and others) can use that color scheme "out of the box", from any fresh installation.
Best regards,
Marcus
On 1/25/25 2:21 PM, Glen Langston wrote:
Hello
Sorry to trouble everyone with a minor issue, but for the last few
years I’ve been generating multiple plot designs with GRC.
I run out of colors and have to select yellow as one. However, I
can barely see yellow and it does not print well.
After running GRC, I edit the python to replace yellow with gold,
which works perfectly fine. It’s just a pain to keep doing it
over and over, when alternate colors are available.
Gold is a pretty distinguishable/printable color, in the "yellow direction”.
At least in future applications please replace yellow with gold.
Thanks
Glen
