docs: ✏️ fix flag name and a11y references

ui/desktop/README.md

@@ -102,7 +102,7 @@ These environment variables may be used to customized the build.
 | `BYPASS_APP_UPDATER` | Disable app updater feature. For development use only. |
 | `DISABLE_WINDOW_CHROME` | Disable window chrome. For internal use only. |
 | `ENABLE_MIRAGE` | Enable (`true`) or disable (`false`) mirage. Default value is `true`. |
-| `DARK_MODE` | Enable (`true`) to set the test browser appearance to dark for running tests in dark mode. |
+| `COLOR_THEME` | Define (`dark`) to set the test browser appearance to dark for running tests in dark mode. |
 
 ### Building for Production
 
@@ -140,7 +140,7 @@ These environment variables may be used to customized the build.
 ### Running Tests
 
 - `pnpm test` runs full tests in random order with coverage
-- `DARK_MODE=true ember test --server` runs tests in dark mode
+- `COLOR_THEME=dark ember test --server` runs tests in dark mode
 
 Keep in mind that tests are executed in random order.  This is intentional
 and helps to prevent hard-to-debug order dependencies among tests.
@@ -154,9 +154,9 @@ Write acceptance tests like normal. Our a11y testing strategy will automatically
 run `a11yAudit()` after [specific helper actions](tests/test-helper.js#L26), like visit, click, and fillIn.
 Our a11y tests have their own pnpm commands:
 
-* `pnpm test-ally` runs a11y tests for light and dark mode
-* `pnpm test-ally:light` runs a11y tests just for light mode
-* `pnpm test-ally:dark` runs a11y tests just for dark mode
+* `pnpm test-a11y` runs a11y tests for light and dark mode
+* `pnpm test-a11y:light` runs a11y tests just for light mode
+* `pnpm test-a11y:dark` runs a11y tests just for dark mode
 
 #### Light vs Dark Mode A11y Tests