feat(theme): interactive selector with live terminal preview

.github/workflows/ci.yml

@@ -40,12 +40,11 @@ jobs:
           tmp_home="$(mktemp -d)"
           export HOME="$tmp_home"
           ./bin/boo theme list >/dev/null
-          ./bin/boo preview all --plain >/dev/null
 
           for theme_file in themes/*.theme; do
             theme="${theme_file##*/}"
             theme="${theme%.theme}"
-            ./bin/boo preview "$theme" --plain >/dev/null
+            ./bin/boo theme "$theme" >/dev/null
           done
 
       - name: Install smoke test
@@ -55,7 +54,6 @@ jobs:
           export HOME="$tmp_home"
           bash scripts/install.sh >/dev/null
           "$HOME/.local/bin/boo" theme list >/dev/null
-          "$HOME/.local/bin/boo" preview all --plain >/dev/null
 
           count=0
           for theme_file in "$HOME/.config/boo/themes/"*.theme; do

README.md

@@ -72,12 +72,6 @@ boo opacity glass
 boo prompt set native
 ```
 
-Optional preview:
-
-```bash
-boo preview all
-```
-
 ## If Something Looks Wrong
 
 ### `boo: command not found`
@@ -111,12 +105,21 @@ boo doctor
 
 ```bash
 boo theme list
+boo theme select
 boo theme abyss
 boo crimson
-boo preview all
-boo preview abyss --plain
 ```
 
+Use the interactive selector for the easiest flow:
+
+```bash
+boo theme select
+```
+
+- Shows all themes in a searchable list
+- Live terminal-style preview panel on the right
+- Press `Enter` to apply, `Esc` to cancel
+
 ### Create your own theme
 
 ```bash
@@ -187,6 +190,7 @@ Expected result:
 
 - `abyss`: deep indigo with violet-magenta accents (default)
 - `clay`: warm cream light mode with earthy terracotta accents
+- `glacier`: icy daylight light mode with steel-blue accents
 - `crimson`: high-contrast red mode
 - `fallout`: RobCo phosphor CRT, warm amber-lime on near-black
 - `lunar`: desaturated monochrome noir