If you're a Project or Account Admin, to change the colour of boxes and headers on your Project Dashboard:
Step 1: Press the Edit cog in the top right corner
to edit dashboard items.
Step 2: Hover over the item you want to edit, and select the settings cog in the bottom right corner.
You will get an "Update Item" window allowing you to change the text, the header colour and background colour.
Step 3: Make your changes and hit "Update" when you're finished.
For any item that has no header, but does have a background colour e.g. a Text Label or a Weblink on the dashboard, you can edit these the same way.
Step 1: Press the Edit cog in the top right corner
to edit dashboard items.
Step 2: Hover over the item you want to edit, and select the settings cog in the bottom right corner.
Step 3: Update the item by changing the text of your label, font size, and colours. You can also change the orientation from Horizontal to Vertical by choosing from the dropdown menu.
Step 4: Hit "Update" when you're finished.