Last 30 days widget ALL bars are red??

For the history widget I think the color displayed is to reflect the type of activity not the training status. Red for running, green for walking and such.

I'm sure it used to be green red or orange depending on training status and I do only run 

Nvm you're right I did a swim activity test and got a blue bar. Would be cool to see it as training status colours option as that makes use of the bar colours for people who only run 

On my watch, the colors are shown accordingly with the type of activity.

I do triathlon and the colors are green for cycling, blue for swimming and red for running. 
I didn’t use this widget, but I add it on my watch just to check.

Thanks for confirming 

In addition it is better to watch in you Garmin mobile app or on internet Garmin connect.

I think the collors on you watch does not mean the same as in the 'trainingstatus' see my pictures!

And aditional i think the red bars is for runnings and the green are for cycling including walking for my activities.

So on you watch it seem to give you info only of your workout times but nog the intensity !

Use the option in your Garmin mobile app !

yes and no. it is the color of the activity as you have it declared and not the type. I have blue for general runs, yellow for strides and red for Track running. 

Ah yeah thanks I can see what it looks like now with cycling also and I will look for that connect feature this what I thought the widget was.

How have you changed colours? That's good I could set workouts to yellow and race's race's red 

https://www8.garmin.com/manuals/webhelp/forerunner945/EN-US/GUID-E03FFCFD-15AD-401E-A15D-715629C6DBF0.html

Accent Color 

I found it earlier bit thanks and this is what confused me I remember now I changed it to green thinking it only changed the colour of the accents in the data screens. So when you change it it keeps the previous runs red but only new ones turn green so I thought it was training status haha