Did some more testing and 15% is better for the 2nd method because 10% kinda kills off all detail in very dark images like Bloodborne

I like the second method and for sure it's better than now

I just want option to have no picture in the background at all T_T

I just want option to have no picture in the background at all T_T

Set transparency to 0.
What do you think about transparency slider as solution?

Set transparency to 0. What do you think about transparency slider as solution?

if it solves my problem and makes background solid, then it's good

I just want option to have no picture in the background at all T_T

you can make a dummy pic1.png that's fully transparent and go into your user/game_data/ folder and copy it in all the folders there if you want to do that

Any chance to have option to disable this background? I did notice answer about transparency but that is not obvious setting.

Hi currently implementing a fix for this based on option 2, will post UI and example images in pr but I want to ask if it is acceptable to break filename backwards compatibility with metadata file for background image in order to store the current opacity to check if we need to recalculate image on user change.

I'm currently debating on either storing the opacity in the filename like "pic1_50.png" (50 for opacity level) this would leave unused "pic1.png" metadata file on users machine, could be corrected by explicit check in code to modify the filename to the new format.
The second option would be to create another metadata file that could be called "opacity.txt" and store the value inside.

I would gladly accept suggestions on what solution to implement.

(Edit)
First option and deleting any png that starts with "pic1" if we need to recalculate the image is the sanest choice I think.

You want to implement the transparency on a per-game basis?
I think the best way to handle would be to just use the default pic1.png provided by the game and store a global value for the transparency in the emu settings, with a slider in the settings menu next to the one for the title music. That way users can fully disable it if they want

This is the plan, the thing is that the image that is displayed is saved as metadata to avoid recalculating it every time you open the emulator, I will create the pull request soon with examples.

Check out the pr above this message, I posted example of my implementation.