... a specific colour scheme using the dialog above. It doesn't work if you set a specific scheme or change the individual colours in the trackpad menu. I will get this changed. 2. it works only if your monitor is set for what Windows used to call "Hi-Color" depth. Templot still has separate settings for the indexed palette colours used on some old CRT monitors (not flat-screen). 3. obviously you must be saving your program preferences. In other words you see this on startup: 2_310746_280000000.png and click GO using my preferences. 4. the colours don't change immediately on start-up, but only after Templot is up and running normally. If all the above applies ok, perhaps you could attach your preferences file here. It is called prefs.sk1 and you can find it in your C:\TEMPLOT_DEV\ folder. cheers, Martin. posted: 31 Dec 2019 16:36 from: stuart1600 Thanks for the comprehensive answer, Martin. I have followed your advice, and the saved colour scheme now appears ...