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Show HN: Make your logo extra bright on HDR screens
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- an hour ago | 13 points | 8 comments
- URL: https://www.soverybright.com/
- Discussions: https://news.ycombinator.com/item?id=49402521
- Summary: This free web tool creates HDR JPEG images where selected colors glow brighter than standard white. Users upload a logo, choose highlight colors, and download an HDR JPEG where chosen areas shine up to 7.5× brighter than #FFFFFF (~1,500 nits) on HDR displays, while remaining a normal JPEG elsewhere.

The tool uses ISO 21496-1 gain-map JPEGs for web and BT.2100 PQ with ICC profiles for LinkedIn. No images are stored; processing happens in memory. Light, near-white elements on dark backgrounds work best; dark colors can't effectively glow since boosting them appears washed out.

Examples demonstrate a white wordmark, an orbit mark with white and blue glows, and a cream sticker badge. HDR effects only display on capable screens in supporting software like Chrome 137+, Safari 26, and LinkedIn apps.

The page also shows how to make text brighter than white using CSS `background-clip: text` with a gain-map JPEG, gated behind `@media (dynamic-range: high)` so non-HDR visitors see normal white text. A 1.3 KB white swatch image enables this technique.

I use dmenu as my main UI, not just dmenu_run.

Super+Space opens a small menu script that launches apps and system actions (WiFi, reboot, shutdown),
all keyboard-driven via sxhkd.

No panel, no mouse menus, WM-agnostic.

#!/bin/sh

ROOT=doas

# Open a terminal (st) with the given title and command
# example: st -t terminal_title -e command 
term() {
    st -t "$1" -e "${@:2}"
}

choice=$(printf "%s\n" \
    "Browser" \
    "Terminal" \
    "IRC" \
    "Mail" \
    "PDF" \
    "Editor" \
    "Files" \
    "Mixer" \
    "WiFi" \
    "Bluetooth" \
    "Reboot" \
    "Shutdown" |
    dmenu -i -l 12 -p "Menu" \
        -fn "Iosevka Term-11" \
        -nb '#000000' -nf '#ffffff' \
        -sb '#005f87' -sf '#ffffff')

case "$choice" in
    Browser)    firefox ;;
    Terminal)   term st tmux ;;
    IRC)        term senpai senpai ;;
    Mail)       term mutt mutt ;;
    PDF)        pdf-open.sh ;;
    Editor)     geany ;;
    Files)      term fff fff ;;
    Mixer)      term alsamixer alsamixer ;;
    WiFi)       term wifitui "$ROOT" wifitui ;;
    Bluetooth)  blueman-manager ;;
    Reboot)     "$ROOT" /sbin/reboot ;;
    Shutdown)   "$ROOT" /sbin/poweroff ;;
esac

Curious how many dwm users do something similar vs bars / mouse menus.

#dwm #dmenu #sxhkd #x11 #linux #suckless