Function combineRgb

combineRgb(r, g, b, a?): number
Combine separate RGB component to one single numerical value. The RGB component have to be in a range of 0-255. There can also be an alpha component in a range of 0.0-1.0 (0 = transparent).

Note: Companion's components can use any CSS color string and you should prefer these strings. E.g.for a button style you can also use '#ff8800' or 'rgb(255, 128, 0)' without calling a function.

Example
```
defaultStyle: {
 bgcolor: combineRgb(255, 0, 0),
 color: combineRgb(255, 255, 255),
}
```
Parameters
- r: number
- g: number
- b: number
- Optionala: number
Returns number
- Defined in src/util.ts:59