Environment

• Package version(s):
  @blueprintjs/core: 5.13.0
  @blueprintjs/datetime2: 2.3.10
  @blueprintjs/select: 5.2.4
• Operating System:
  Windows 10 Home Edition
• Browser name and version:
  Google Chrome 130.0.6723.70
  Firefox 131.0.3
  Microsoft Edge 130.0.2849.56

Code Sandbox

Reproducible on the Blueprint sample page:
https://blueprintjs.com/docs/#datetime2/date-range-input3

Steps to reproduce

1. Open the link
2. Switch to dark theme
3. Open month selector

Actual behavior

Note different styles applied in different browsers.

Chrome:

Firefox:

Edge:

Expected behavior

Same component appearance in all browsers.

Possible solution

Can be improved a bit by overriding styles manually.
But could not get the same appearance because native structures are being used by DateRangeInput3.