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Arduino Parameter Parser library allows you to parse formatted plain text. It generates data. Data types can be integer, boolean, float or string. You can fetch data with name ...

The "-" says us it's a name and comes "value" after space after name. It define "-name value". int asInt (const char* name, int ifNotValue) // return value of "name" as integer type float asFloat ...
GitHub

Arduino library for mapping a float to a colour spectrum.

The map2colour library is used to map a float value to a colour in the RGB spectrum. The float value can be the result of a calculation or read from a sensor, e.g. temperature, humidity, light, ...