Support hex prefix colors with modifiers

src/logger.spec.ts

@@ -197,6 +197,21 @@ describe('#logCommandText()', () => {
         expect(logger.log).toHaveBeenCalledWith(chalk.hex(prefixColor)('[1]') + ' ', 'foo', cmd);
     });
 
+    it('logs prefix using prefixColor from command if prefixColor is a hex value with modifiers', () => {
+        const { logger } = createLogger({});
+        const prefixColor = '#32bd8a.inverse';
+        const cmd = new FakeCommand('', undefined, 1, {
+            prefixColor,
+        });
+        logger.logCommandText('foo', cmd);
+
+        expect(logger.log).toHaveBeenCalledWith(
+            chalk.hex(prefixColor).inverse('[1]') + ' ',
+            'foo',
+            cmd,
+        );
+    });
+
     it('does nothing if command is hidden by name', () => {
         const { logger } = createLogger({ hide: ['abc'] });
         const cmd = new FakeCommand('abc');

src/logger.ts

@@ -121,7 +121,11 @@ export class Logger {
     colorText(command: Command, text: string) {
         let color: chalk.Chalk;
         if (command.prefixColor && command.prefixColor.startsWith('#')) {
-            color = chalk.hex(command.prefixColor);
+            const [hexColor, ...modifiers] = command.prefixColor.split('.');
+            color = chalk.hex(hexColor);
+            if (modifiers.length) {
+                color = _.get(color, modifiers);
+            }
         } else {
             const defaultColor = _.get(chalk, defaults.prefixColors, chalk.reset);
             color = _.get(chalk, command.prefixColor ?? '', defaultColor);