Fix Atom One Light autocomplete selection highlight disappearing with keyboard navigation

[Copilot]

The Atom One Light theme had invisible autocomplete selection highlighting when navigating through suggestions with keyboard arrow keys. The issue was caused by inactive selection states using white (#FFFFFF) background color, making selections invisible against the light theme.

Before the fix:

• Autocomplete popup shows visible selection initially
• Using arrow keys to navigate makes the selection highlight disappear completely
• Users lose visual feedback about which option is selected

After the fix:

• Selection highlight remains consistently visible when navigating with arrow keys
• Uses the same light blue selection color (#d6e1f1) for both active and inactive states
• Dark text (#232324) ensures proper contrast and readability

Technical changes:

• Autocomplete.selectionUnfocus: "hl" → "selBg"
• CompletionPopup.selectionInactiveBackground: "hl" → "selBg"
• CompletionPopup.selectionInactiveForeground: "text" → "selFg"
• CompletionPopup.selectionInactiveInfoForeground: "text" → "selFg"

Applied to all Atom One Light theme variants: Regular, Compact, Contrast, and Compact Contrast.

Fixes #193.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• cache-redirector.jetbrains.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -XX:MaxMetaspaceSize=384m -XX:+HeapDumpOnOutOfMemoryError -Xms256m -Xmx512m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/gradle-launcher-8.8.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/agents/gradle-instrumentation-agent-8.8.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.8 (dns block)
• packages.jetbrains.team
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -XX:MaxMetaspaceSize=384m -XX:+HeapDumpOnOutOfMemoryError -Xms256m -Xmx512m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/gradle-launcher-8.8.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/agents/gradle-instrumentation-agent-8.8.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.8 (dns block)
• www.jetbrains.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -XX:MaxMetaspaceSize=384m -XX:+HeapDumpOnOutOfMemoryError -Xms256m -Xmx512m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/gradle-launcher-8.8.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.8-bin/dl7vupf4psengwqhwktix4v1/gradle-8.8/lib/agents/gradle-instrumentation-agent-8.8.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.8 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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