Add colorblind-accessible decode highlighting palettes - #48
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What this does
Adds three predefined, colorblind/low-vision-friendly color presets for the
Decode Highlighting feature (Configuration → Colors tab): Red-Green safe
(Deuteranopia/Protanopia), Blue-Yellow safe (Tritanopia), and High contrast.
A new "Apply Accessibility Palette" button + dropdown menu applies them,
reusing the existing confirm-then-apply flow already used by "Reset
Highlighting to Default 1/2".
Why
While helping a family member (also a licensed ham) set up WSJT-X, I
realized the color-coded decode highlighting wasn't helping him due to a
color vision deficiency. It made me think about how many ham operators
might be in the same situation, quietly working around a UI that assumes
everyone sees colors the same way.
WSJT-X already lets you customize every highlight color by hand, but
picking colors that actually work for a given color vision deficiency
takes some know-how most users don't have. Having a few vetted presets
ready to go means someone can just pick the one that matches their
situation instead of having to research and hand-pick colors themselves.
Tested on
macOS (Homebrew Qt5/Hamlib/FFTW/Boost toolchain), full app build clean,
manually verified in the running app: applying each preset, confirmation
dialog, colors updating in the list view, persistence across restart.
Screenshots
Happy to iterate on this — open to feedback on the color choices, the UI
placement, or the overall approach, and glad to make updates as needed.
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