Checkmk Werk 10630: graphs/perfometers: Improve graph colors to match the color themes

ID: 10630 Title: graphs/perfometers: Improve graph colors to match the color themes Component: Multisite Level: 1 Class: New feature Version: 1.7.0i1 The color of graphs and perfometers are sometimes too bright or too dark compared to the rest of the interface, depending on the user interface theme that was used (classic, modern, dark). The opacity can now be defined. Added support of the 'rgba' notation for the color of graphs. (rgba: '#aabbccff')