Can't change the lineColor in a timeline diagram

[blackmad]

Description

I'm struggling to figure out if it's at all possible to change the line color of timeline diagrams.

I've read the docs for timeline https://mermaid.js.org/syntax/timeline.html which doesn't talk about line color, and also https://mermaid.js.org/config/theming.html#theme-variables-reference-table

Is the line color configurable? how can I figure out what variable controls it?

I'm trying lineColor and actorLineColor, but neither seems to do it.

Steps to reproduce

https://mermaid.live/edit#pako:eNplUcFqwzAM_RWhEXzJIZSdct3YVmhhUNgpFyWWM1PHGo4zKCH_PqVjXbvJF_u9pydLmrETy1gjaBTF7KPPNcxggvQ7_uRgajCW26k3JZj8zgOvSEsjG_hB3ih5agOPSs1NhJswwUd-kCBpTbxzrtIw5T8ZdVnS7kZbVavaXKTLeori8s5-4NX91yv7HBhe_KheJxAHB-k8Bdiz9QSvgbKTNFzX3lTVBmrQwke22_iHulfqiTpuRY56fRbpg5bDEgdOA3mrkzt33ODtJBrUUSzlFbUiDVp2NIXcYBMXdaEpy-EUO6xzmrjE6cNS5kdPfaIBa0dhVFQ_r_3svxd13tfyBb35gaY(

Screenshots

No response

Code Sample

%%{init: { 'logLevel': 'debug', 'theme': 'base' , 'themeVariables': {
              'lineColor': '#ff0000',
              'actorLineColor': '#00ff00'
       } } }%%
       timeline
        title History of Social Media Platform
          2002 : LinkedIn
          2004 : Facebook : Google

### Setup

- Mermaid version: 10.0.2
- Browser and Version: Chrome

### Additional Context

_No response_

[jgreywolf]

@blackmad No, you are not able to change the line color in timeline diagram at this time. We will consider it for a future version