Select here between the different CRT Profile setting to achive the best 15 Khz video output.
The list contains
Select what suites best for you. All profiles despite of custom comes with presetting. The custom profile can be used for your own adjusted settings.
If you use the custom CRT Profile you can calibrate your screen here with a simple 4 step dialogue. Take care, the step pitch is very fine grained.
Toggle H/V changes the orientation settings for your CRT on the fly.
Change here the Lemonlauncher overscan.
Each emulator core can be started with custom hdmi_timings. hdmi_timings define the resolution of the screen. Edit the resolution for your needs.
If you find a rom that has a wrong resolution setting or is missing you can add and correct it here.
Turns screen upside down or left right.
Toggles custom res on or off. If off only the config.txt resolution is used.
Use lowres for 15 khz screens and highres for other, ie bartops with hdmi, DVI or VGA