Spectacle, Breeze light, information:
{F5821486}
Spectable, Breeze light, positive:
{F5821487}
Dolphin, Breeze dark, negative:
{F5821488}
Konsole, light, warning:
{F5821489}
Oops, doesn't work! We'll need to fix Konsole to put a proper background behind it rather than overlapping the content.
Style comparison between KMessageWidget and inlineMessage:
{F5821491}