Flowchart and sequence don't adhere to the chosen Interface Theme

[Redsandro]

Current behavior

Choosing a dark theme is popular. These are the most common reasons for choosing a dark theme:

• Cooler looking
• Easier on the eyes
• More battery friendly for OLED displays

Boostnote was very aware of this, and you can choose a dark theme:

The problem is that flowchart and sequence now break the flow with screaming white color.

Expected behavior

On dark themes, diagrams will be white drawings on dark or transparent background.

Steps to reproduce

1. Select a dark theme.
2. Enter some sequence or flowchart code in a note.

Environment

• Version : 11.9
• OS Version and name : Ubuntu 18.04

[SEEDART007]

@Flexo013 can i work on this?