Lots of questions about Home Assistant

Hello Community,

i have a lot of questions about HA that i can’t resolve through videos or posts.

Question 1:
How can I change the color of the line? For example if the temperature is above 30 ° C then red?

Blockquote
type: sensor
entity: sensor.hmip_eg_eg_wohn_thermo_temperature
graph: line
name: TEMPERATURVERLAUF
Blockquote

Question 2:

Is it possible to play an mp3 on the media directory on Amazon Alexa?

Question 3:

I have installed feed parser. In addition the layout “list-card”. He just doesn’t find the list-card.js. The file or folder is in the “www” directory.

Sorry for my bad English :frowning:

Nice greetings from Germany :slight_smile: