Hello gucci95,
If your space bar is not responding properly, here's some things you can check:
"• Choose Apple menu > System Settings, click Accessibility in the sidebar, then click Keyboard on the right. (You may need to scroll down.) Make sure Slow Keys is turned off. If Slow Keys is on, you must press and hold a key longer than usual before it’s recognized.
• Choose Apple menu > System Settings, click Accessibility in the sidebar, then click Pointer Control on the right. (You may need to scroll down.) Make sure Mouse Keys is off.
• Choose Apple menu > System Settings, then click Keyboard in the sidebar. (You may need to scroll down.) Click Edit next to Input Sources on the right, then turn on “Show Input menu in menu bar.” Open the Input menu, then make sure the correct keyboard layout is selected."
If your Mac doesn’t respond to key presses
If the space bar key is physically stuck, or not moving properly you can use these recommended steps to try cleaning the keyboard: How to clean the keyboard of your MacBook or MacBook Pro
If the key is space bar is still not responding properly, then you'll want to have the device serviced. You can find available service options for Mac here: Mac Repair & Service
If you'd like to change your accent color from pink to something else, you can do that in System Settings > General > Accent Color.
Cheers!