Bug: schematic appearance not preserved under dark theme under copy as image

[Nair_Aalam]

Summary: When using the “Copy as Image” function on a schematic with PLECS set to the Dark theme, the exported image does not preserve the same visual appearance as the schematic in the Light theme. The exported schematic is a much lower contrast image. The schematic’s visual content should be theme-independent when copied as an image.

Steps to Reproduce:

1. Set PLECS appearance to Dark theme.
2. Open a schematic.
3. Right-click the Edit menu and select “Copy as Image”.
4. Paste the copied image into an external application (e.g., Paint, Word, image viewer).
5. Switch PLECS to Light theme, repeat steps 3–4 on the same schematic.
6. Compare the two exported images.

Expected Behavior:
The schematic’s exported appearance should remain the same regardless of whether PLECS is in Dark or Light theme — the theme should only affect the editor’s background/canvas, not the actual content being copied out.

Actual Behavior:
The exported schematic produced while using the Dark theme is a much lower contrast image compared to the one produced while using the Light theme.

Attachments:

• Screenshot 1: “Copy as Image” result in Dark theme (against a white background)
• Screenshot 2: “Copy as Image” result in Light theme (against a white background) (same schematic, for comparison)

PLECS Version: 5.0.6
OS: Windows 11

[Bryan_Lieblick]

Thanks for the report. I will file this with our developers!

[Nair_Aalam]

As an afterthought, I just put the exported image (while using the dark theme) against a black background for comparison. It seems the behavior is correct and may be intentional (see image below). But if possible, maybe consider either not restricting “Copy as Image” to theme-specific behavior or providing a global setting.

Screenshot 3: “Copy as Image” result in Dark theme (against a black background)

PS. I am aware Ctrl+Shift+E provides options to choose between different export settings.