Wrong parsing of styling

I'm far from a dev, but I came a cross a problem. It took my e very long time to find the issue.

`views:
- title: Test
path: Test
cards:
- type: custom:flex-horseshoe-card
entities:
- entity: sensor.test
unit: W
layout:
states:
- id: 0
entity_index: 0
xpos: 50
ypos: 50
styles:
- font-size: 8em
- fill: purple
hlines:
- id: 0
xpos: 50
ypos: 42
length: 40
styles:
- stroke: orange
- stroke-width: 10
- opacity: 1
show:
horseshoe_style: lineargradient
horseshoe_scale:
min: 0
max: 100
color_stops:
'0': blue
'50': green
'100': red
`
Testing this card the fontsize isn't correct and the horizontal line wasn't visible.
In the console styling looks like this:
`font-size:8emcolor:var(--primary-text-color);opacity:1.0;text-anchor:middle;fill:purple`
and like this:
`stroke-linecap:round;stroke:orangeopacity:1stroke-width:10`

So styling is messedup. Both lines miss a ; .

Changing the styling in the console, it works.
`font-size:8em; color:var(--primary-text-color);opacity:1.0;text-anchor:middle;fill:purple`
`stroke-linecap:round;stroke:orange; opacity:1stroke-width:10`
Hope this can be fixed.