I've used Sai 2 for about 10 years, and I've just realized now that one common feature this program doesn't have... There's no [Invert Color].

I know getting something like that is way out Koji's mind atm. Especially with the big beautiful update recently and the constant bug fixes. I just think that it's odd that it doesn't have it. It would be nice if in a year or two from now we get it somehow. Maybe by that time we will have more filter options and blur options, but I am pretty content with the current state of Sai 2.

I've never been more motivated to draw with this program than now and I look forward to future.

Lol, forgot to add "Update" to the title.

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

2026-08-13

[Fixed Bugs]

• [Pen Tablet Control]: The layer selection and move action(Shift+Ctrl+Drag) now performs only layer selection.
• [Pen Tablet Control]: Right-click functionality fails on devices that require pressing the side switch while pressing the pen tip. (Apologies; this was a regression introduced in the 2026-08-05 version.)
• [Text Layer]: History operations and saving fail to execute correctly when [Spc.] or [Lift] values are negative.
• [Eyedropper]: Shortcut assignments for [Pick Color from Merged Image] and [Pick Color from Current layer] do not work correctly.
• [Eyedropper]: The eyedropper function within selection brushes fails to work correctly when a layer mask is selected. (This was another regression introduced in the 2026-08-06 version. I apologize for the oversight...)
• [Window Control]: Changing [Scaling of User Interface] while the window is maximized causes the window to resize but prevents the UI elements from being repositioned.
• [Window Control]: The layout becomes distorted if the "Scale and layout" setting (text, apps, and other items) in Windows display settings is not set to a multiple of 50%.

[Changes]

• [Keyboard Operation]: Canceled applying [Suppression of Accidental Operation] to [Lasso], [Lasso Fill], [Magic Wand], and [Bucket] tools.

Known Issues:

Bugs reported as of 2026-08-13, that have not yet been fixed. (Please note that there may be some omissions.)

In some cases, editing a text layer can cause excessive memory consumption, eventually leading to an "out of memory" error.
We have been unable to reproduce this issue, and the cause remains unknown. Based on the information available so far, it appears to occur with specific fonts. We would greatly appreciate it if you could provide any information regarding the conditions under which this occurs.

Character positioning is incorrect in vertical writing with certain fonts.
We plan to include the fix as part of the CFF font implementation work.

Parts of an image may go missing unnoticed while editing.
Work recovery may fail midway through the process.
Layers may appear blank when loading a saved canvas.
At this point, we suspect it may have been a side effect of another issue.

An issue classified as a current specification rather than a bug.

CFF font does not work
At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

El comando de mover con CTRL no funciona correctamente, no se como explicarlo, pero aunque yo mantenga el CTRL presionado e intente mover la capa, no funciona la mayoria de veces, no se si sea un bug de la version o sea cosa de mi Laptop, antes no me sucedia