Sometimes when you publish color changes from ShortPoint's modern Theme builder, the color changes are not reflected on your page immediately after publishing.
Please follow these simple steps to fix the problem.
1. On your modern page, click the Cog wheel icon at the top of the page and click Change the look:
2. Wait for the modal to come up and simply close it. You can close it by click the Cancel button or clicking the X icon at the top:
3. That's all, your color changes should be applied correctly now.